From 126093adc6136b7bfb7ba38c96f0eb7899abd7d1 Mon Sep 17 00:00:00 2001
From: Hussein Alihussein <hussein@irmb.tu-bs.de>
Date: Mon, 27 Feb 2023 19:06:25 +0100
Subject: [PATCH] Add non reflecting in and outflow BCs
---
.../NonReflectingInflowBCAlgorithm.cpp | 341 ++++++++++++++++++
.../NonReflectingInflowBCAlgorithm.h | 50 +++
...ectingOutflowBCAlgorithmWithRelaxation.cpp | 233 ++++++++++++
...flectingOutflowBCAlgorithmWithRelaxation.h | 50 +++
4 files changed, 674 insertions(+)
create mode 100644 src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingInflowBCAlgorithm.cpp
create mode 100644 src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingInflowBCAlgorithm.h
create mode 100644 src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingOutflowBCAlgorithmWithRelaxation.cpp
create mode 100644 src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingOutflowBCAlgorithmWithRelaxation.h
diff --git a/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingInflowBCAlgorithm.cpp b/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingInflowBCAlgorithm.cpp
new file mode 100644
index 000000000..078e8bfb4
--- /dev/null
+++ b/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingInflowBCAlgorithm.cpp
@@ -0,0 +1,341 @@
+//=======================================================================================
+// ____ ____ __ ______ __________ __ __ __ __
+// \ \ | | | | | _ \ |___ ___| | | | | / \ | |
+// \ \ | | | | | |_) | | | | | | | / \ | |
+// \ \ | | | | | _ / | | | | | | / /\ \ | |
+// \ \ | | | | | | \ \ | | | \__/ | / ____ \ | |____
+// \ \ | | |__| |__| \__\ |__| \________/ /__/ \__\ |_______|
+// \ \ | | ________________________________________________________________
+// \ \ | | | ______________________________________________________________|
+// \ \| | | | __ __ __ __ ______ _______
+// \ | | |_____ | | | | | | | | | _ \ / _____)
+// \ | | _____| | | | | | | | | | | \ \ \_______
+// \ | | | | |_____ | \_/ | | | | |_/ / _____ |
+// \ _____| |__| |________| \_______/ |__| |______/ (_______/
+//
+// This file is part of VirtualFluids. VirtualFluids is free software: you can
+// redistribute it and/or modify it under the terms of the GNU General Public
+// License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// VirtualFluids is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with VirtualFluids (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
+//
+//! \file NonReflectingInflowBCAlgorithm.cpp
+//! \ingroup BoundarConditions
+//! \author Hussein Alihussein
+//=======================================================================================
+#include "NonReflectingInflowBCAlgorithm.h"
+
+#include "BoundaryConditions.h"
+#include "D3Q27System.h"
+#include "DistributionArray3D.h"
+
+NonReflectingInflowBCAlgorithm::NonReflectingInflowBCAlgorithm()
+{
+ BCAlgorithm::type = BCAlgorithm::NonReflectingInflowBCAlgorithm;
+ BCAlgorithm::preCollision = true;
+}
+//////////////////////////////////////////////////////////////////////////
+NonReflectingInflowBCAlgorithm::~NonReflectingInflowBCAlgorithm() = default;
+//////////////////////////////////////////////////////////////////////////
+SPtr<BCAlgorithm> NonReflectingInflowBCAlgorithm::clone()
+{
+ SPtr<BCAlgorithm> bc(new NonReflectingInflowBCAlgorithm());
+ return bc;
+}
+//////////////////////////////////////////////////////////////////////////
+void NonReflectingInflowBCAlgorithm::addDistributions(SPtr<DistributionArray3D> distributions)
+{
+ this->distributions = distributions;
+}
+//////////////////////////////////////////////////////////////////////////
+void NonReflectingInflowBCAlgorithm::applyBC()
+{
+ using namespace vf::lbm::dir;
+ using namespace D3Q27System;
+ // using namespace UbMath;
+ using namespace vf::lbm::constant;
+
+ LBMReal f[ENDF + 1];
+ LBMReal ftemp[ENDF + 1];
+
+ int nx1 = x1;
+ int nx2 = x2;
+ int nx3 = x3;
+ int direction = -1;
+
+ // flag points in direction of fluid
+ if (bcPtr->hasDensityBoundaryFlag(DIR_P00)) {
+ nx1 += 1;
+ direction = DIR_P00;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_M00)) {
+ nx1 -= 1;
+ direction = DIR_M00;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_0P0)) {
+ nx2 += 1;
+ direction = DIR_0P0;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_0M0)) {
+ nx2 -= 1;
+ direction = DIR_0M0;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_00P)) {
+ nx3 += 1;
+ direction = DIR_00P;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_00M)) {
+ nx3 -= 1;
+ direction = DIR_00M;
+ } else
+ UB_THROW(UbException(UB_EXARGS, "Danger...no orthogonal BC-Flag on density boundary..."));
+
+ distributions->getDistribution(f, x1, x2, x3);
+ distributions->getDistribution(ftemp, nx1, nx2, nx3);
+
+ LBMReal rho, vx1, vx2, vx3;
+ calcMacrosFct(f, rho, vx1, vx2, vx3);
+ //vx1 = 0.;
+ LBMReal BCVeloWeight = 0.5;
+ // LBMReal velocity = 0.004814077025232405;
+ // LBMReal velocity = 0.00057735;
+ //LBMReal velocity = 0.04;
+ // LBMReal velocity = 0.01;
+ // LBMReal velocity = 1./112.;
+ // LBMReal velocity = 1./126.;
+ LBMReal velocity = 1./200.;
+ // LBMReal velocity = 0.005;
+ //LBMReal delf =(-velocity+vx1)*0.5 ;
+ LBMReal delf;
+
+ switch (direction) {
+ case DIR_P00:
+ delf = (-velocity + vx1) * BCVeloWeight;
+ // delf = (-velocity ) * BCVeloWeight;
+ f[DIR_P00] = ftemp[DIR_P00] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P00] - delf* WEIGTH[DIR_P00];
+ f[DIR_PP0] = ftemp[DIR_PP0] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PP0]- delf* WEIGTH[DIR_PP0];
+ f[DIR_PM0] = ftemp[DIR_PM0] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PM0]- delf* WEIGTH[DIR_PM0];
+ f[DIR_P0P] = ftemp[DIR_P0P] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P0P]- delf* WEIGTH[DIR_P0P];
+ f[DIR_P0M] = ftemp[DIR_P0M] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P0M]- delf* WEIGTH[DIR_P0M];
+ f[DIR_PPP] = ftemp[DIR_PPP] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PPP]- delf* WEIGTH[DIR_PPP];
+ f[DIR_PMP] = ftemp[DIR_PMP] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PMP]- delf* WEIGTH[DIR_PMP];
+ f[DIR_PPM] = ftemp[DIR_PPM] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PPM]- delf* WEIGTH[DIR_PPM];
+ f[DIR_PMM] = ftemp[DIR_PMM] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PMM]- delf* WEIGTH[DIR_PMM];
+ //f[DIR_P00] = (ftemp[DIR_P00] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P00]) *
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_M00] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_M00] +
+ // velocity*(6)*WEIGTH[DIR_P00]/* bcPtr->getBoundaryVelocity(INVDIR[DIR_M00])*/) *
+ // (BCVeloWeight) ;
+ //f[DIR_PP0] = (ftemp[DIR_PP0] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PP0]) *
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_MM0] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_MM0] +
+ // velocity * (6) * WEIGTH[DIR_PP0] /*bcPtr->getBoundaryVelocity(INVDIR[DIR_MM0])*/) *
+ // (BCVeloWeight);
+ //f[DIR_PM0] = (ftemp[DIR_PM0] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PM0]) *
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_MP0] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_MP0] +
+ // velocity*(6)*WEIGTH[DIR_PP0]/* bcPtr->getBoundaryVelocity(INVDIR[DIR_MP0])*/) *
+ // (BCVeloWeight);
+ //f[DIR_P0P] = (ftemp[DIR_P0P] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P0P]) *
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_M0M] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_M0M] +
+ // velocity*(6)*WEIGTH[DIR_P0P]/* bcPtr->getBoundaryVelocity(INVDIR[DIR_M0M])*/) *
+ // (BCVeloWeight);
+ //f[DIR_P0M] = (ftemp[DIR_P0M] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P0M])*
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_M0P] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_M0P] +
+ // velocity*(6)*WEIGTH[DIR_P0M]/* bcPtr->getBoundaryVelocity(INVDIR[DIR_M0P])*/) *
+ // (BCVeloWeight);
+ //f[DIR_PPP] = (ftemp[DIR_PPP] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PPP])*
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_MMM] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_MMM] +
+ // velocity * (6) * WEIGTH[DIR_PPP] /* bcPtr->getBoundaryVelocity(INVDIR[DIR_MMM])*/) *
+ // (BCVeloWeight);
+ //f[DIR_PMP] = (ftemp[DIR_PMP] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PMP]) *
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_MPM] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_MPM] +
+ // velocity * (6) * WEIGTH[DIR_PPP] /*bcPtr->getBoundaryVelocity(INVDIR[DIR_MPM])*/) *
+ // (BCVeloWeight);
+ //f[DIR_PPM] = (ftemp[DIR_PPM] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PPM]) *
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_MMP] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_MMP] +
+ // velocity * (6) * WEIGTH[DIR_PPP] /* bcPtr->getBoundaryVelocity(INVDIR[DIR_MMP])*/) *
+ // (BCVeloWeight);
+ //f[DIR_PMM] = (ftemp[DIR_PMM] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PMM]) *
+ // (1 - BCVeloWeight) +
+ // (ftemp[DIR_MPP] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_MPP] +
+ // velocity * (6) * WEIGTH[DIR_PPP] /* bcPtr->getBoundaryVelocity(INVDIR[DIR_MPP])*/) *
+ // (BCVeloWeight);
+
+ distributions->setDistributionInvForDirection(f[DIR_P00], x1 + DX1[DIR_M00], x2 + DX2[DIR_M00], x3 + DX3[DIR_M00], DIR_M00);
+ distributions->setDistributionInvForDirection(f[DIR_PP0], x1 + DX1[DIR_MM0], x2 + DX2[DIR_MM0], x3 + DX3[DIR_MM0], DIR_MM0);
+ distributions->setDistributionInvForDirection(f[DIR_PM0], x1 + DX1[DIR_MP0], x2 + DX2[DIR_MP0], x3 + DX3[DIR_MP0], DIR_MP0);
+ distributions->setDistributionInvForDirection(f[DIR_P0P], x1 + DX1[DIR_M0M], x2 + DX2[DIR_M0M], x3 + DX3[DIR_M0M], DIR_M0M);
+ distributions->setDistributionInvForDirection(f[DIR_P0M], x1 + DX1[DIR_M0P], x2 + DX2[DIR_M0P], x3 + DX3[DIR_M0P], DIR_M0P);
+ distributions->setDistributionInvForDirection(f[DIR_PPP], x1 + DX1[DIR_MMM], x2 + DX2[DIR_MMM], x3 + DX3[DIR_MMM], DIR_MMM);
+ distributions->setDistributionInvForDirection(f[DIR_PMP], x1 + DX1[DIR_MPM], x2 + DX2[DIR_MPM], x3 + DX3[DIR_MPM], DIR_MPM);
+ distributions->setDistributionInvForDirection(f[DIR_PPM], x1 + DX1[DIR_MMP], x2 + DX2[DIR_MMP], x3 + DX3[DIR_MMP], DIR_MMP);
+ distributions->setDistributionInvForDirection(f[DIR_PMM], x1 + DX1[DIR_MPP], x2 + DX2[DIR_MPP], x3 + DX3[DIR_MPP], DIR_MPP);
+ break;
+ case DIR_M00:
+ delf = (-velocity - vx1) * BCVeloWeight;
+ f[DIR_M00] = ftemp[DIR_M00] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_M00] -
+ delf * WEIGTH[DIR_M00];
+ f[DIR_MP0] = ftemp[DIR_MP0] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MP0] -
+ delf * WEIGTH[DIR_MP0];
+ f[DIR_MM0] = ftemp[DIR_MM0] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MM0] -
+ delf * WEIGTH[DIR_MM0];
+ f[DIR_M0P] = ftemp[DIR_M0P] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_M0P] -
+ delf * WEIGTH[DIR_M0P];
+ f[DIR_M0M] = ftemp[DIR_M0M] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_M0M] -
+ delf * WEIGTH[DIR_M0M];
+ f[DIR_MPP] = ftemp[DIR_MPP] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MPP] -
+ delf * WEIGTH[DIR_MPP];
+ f[DIR_MMP] = ftemp[DIR_MMP] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MMP] -
+ delf * WEIGTH[DIR_MMP];
+ f[DIR_MPM] = ftemp[DIR_MPM] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MPM] -
+ delf * WEIGTH[DIR_MPM];
+ f[DIR_MMM] = ftemp[DIR_MMM] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MMM] -
+ delf * WEIGTH[DIR_MMM];
+
+ distributions->setDistributionInvForDirection(f[DIR_M00], x1 + DX1[DIR_P00], x2 + DX2[DIR_P00], x3 + DX3[DIR_P00], DIR_P00);
+ distributions->setDistributionInvForDirection(f[DIR_MP0], x1 + DX1[DIR_PM0], x2 + DX2[DIR_PM0], x3 + DX3[DIR_PM0], DIR_PM0);
+ distributions->setDistributionInvForDirection(f[DIR_MM0], x1 + DX1[DIR_PP0], x2 + DX2[DIR_PP0], x3 + DX3[DIR_PP0], DIR_PP0);
+ distributions->setDistributionInvForDirection(f[DIR_M0P], x1 + DX1[DIR_P0M], x2 + DX2[DIR_P0M], x3 + DX3[DIR_P0M], DIR_P0M);
+ distributions->setDistributionInvForDirection(f[DIR_M0M], x1 + DX1[DIR_P0P], x2 + DX2[DIR_P0P], x3 + DX3[DIR_P0P], DIR_P0P);
+ distributions->setDistributionInvForDirection(f[DIR_MPP], x1 + DX1[DIR_PMM], x2 + DX2[DIR_PMM], x3 + DX3[DIR_PMM], DIR_PMM);
+ distributions->setDistributionInvForDirection(f[DIR_MMP], x1 + DX1[DIR_PPM], x2 + DX2[DIR_PPM], x3 + DX3[DIR_PPM], DIR_PPM);
+ distributions->setDistributionInvForDirection(f[DIR_MPM], x1 + DX1[DIR_PMP], x2 + DX2[DIR_PMP], x3 + DX3[DIR_PMP], DIR_PMP);
+ distributions->setDistributionInvForDirection(f[DIR_MMM], x1 + DX1[DIR_PPP], x2 + DX2[DIR_PPP], x3 + DX3[DIR_PPP], DIR_PPP);
+ break;
+ case DIR_0P0:
+ delf = (-velocity + vx2) * BCVeloWeight;
+ f[DIR_0P0] = ftemp[DIR_0P0] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_0P0] -
+ delf * WEIGTH[DIR_0P0];
+ f[DIR_PP0] = ftemp[DIR_PP0] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_PP0] -
+ delf * WEIGTH[DIR_PP0];
+ f[DIR_MP0] = ftemp[DIR_MP0] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_MP0] -
+ delf * WEIGTH[DIR_MP0];
+ f[DIR_0PP] = ftemp[DIR_0PP] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_0PP] -
+ delf * WEIGTH[DIR_0PP];
+ f[DIR_0PM] = ftemp[DIR_0PM] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_0PM] -
+ delf * WEIGTH[DIR_0PM];
+ f[DIR_PPP] = ftemp[DIR_PPP] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_PPP] -
+ delf * WEIGTH[DIR_PPP];
+ f[DIR_MPP] = ftemp[DIR_MPP] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_MPP] -
+ delf * WEIGTH[DIR_MPP];
+ f[DIR_PPM] = ftemp[DIR_PPM] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_PPM] -
+ delf * WEIGTH[DIR_PPM];
+ f[DIR_MPM] = ftemp[DIR_MPM] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_MPM] -
+ delf * WEIGTH[DIR_MPM];
+
+ distributions->setDistributionInvForDirection(f[DIR_0P0], x1 + DX1[DIR_0M0], x2 + DX2[DIR_0M0], x3 + DX3[DIR_0M0], DIR_0M0);
+ distributions->setDistributionInvForDirection(f[DIR_PP0], x1 + DX1[DIR_MM0], x2 + DX2[DIR_MM0], x3 + DX3[DIR_MM0], DIR_MM0);
+ distributions->setDistributionInvForDirection(f[DIR_MP0], x1 + DX1[DIR_PM0], x2 + DX2[DIR_PM0], x3 + DX3[DIR_PM0], DIR_PM0);
+ distributions->setDistributionInvForDirection(f[DIR_0PP], x1 + DX1[DIR_0MM], x2 + DX2[DIR_0MM], x3 + DX3[DIR_0MM], DIR_0MM);
+ distributions->setDistributionInvForDirection(f[DIR_0PM], x1 + DX1[DIR_0MP], x2 + DX2[DIR_0MP], x3 + DX3[DIR_0MP], DIR_0MP);
+ distributions->setDistributionInvForDirection(f[DIR_PPP], x1 + DX1[DIR_MMM], x2 + DX2[DIR_MMM], x3 + DX3[DIR_MMM], DIR_MMM);
+ distributions->setDistributionInvForDirection(f[DIR_MPP], x1 + DX1[DIR_PMM], x2 + DX2[DIR_PMM], x3 + DX3[DIR_PMM], DIR_PMM);
+ distributions->setDistributionInvForDirection(f[DIR_PPM], x1 + DX1[DIR_MMP], x2 + DX2[DIR_MMP], x3 + DX3[DIR_MMP], DIR_MMP);
+ distributions->setDistributionInvForDirection(f[DIR_MPM], x1 + DX1[DIR_PMP], x2 + DX2[DIR_PMP], x3 + DX3[DIR_PMP], DIR_PMP);
+ break;
+ case DIR_0M0:
+ delf = (-velocity - vx2) * BCVeloWeight;
+ f[DIR_0M0] = ftemp[DIR_0M0] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_0M0] -
+ delf * WEIGTH[DIR_0M0];
+ f[DIR_PM0] = ftemp[DIR_PM0] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_PM0] -
+ delf * WEIGTH[DIR_PM0];
+ f[DIR_MM0] = ftemp[DIR_MM0] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_MM0] -
+ delf * WEIGTH[DIR_MM0];
+ f[DIR_0MP] = ftemp[DIR_0MP] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_0MP] -
+ delf * WEIGTH[DIR_0MP];
+ f[DIR_0MM] = ftemp[DIR_0MM] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_0MM] -
+ delf * WEIGTH[DIR_0MM];
+ f[DIR_PMP] = ftemp[DIR_PMP] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_PMP] -
+ delf * WEIGTH[DIR_PMP];
+ f[DIR_MMP] = ftemp[DIR_MMP] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_MMP] -
+ delf * WEIGTH[DIR_MMP];
+ f[DIR_PMM] = ftemp[DIR_PMM] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_PMM] -
+ delf * WEIGTH[DIR_PMM];
+ f[DIR_MMM] = ftemp[DIR_MMM] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_MMM] -
+ delf * WEIGTH[DIR_MMM];
+
+ distributions->setDistributionInvForDirection(f[DIR_0M0], x1 + DX1[DIR_0P0], x2 + DX2[DIR_0P0], x3 + DX3[DIR_0P0], DIR_0P0);
+ distributions->setDistributionInvForDirection(f[DIR_PM0], x1 + DX1[DIR_MP0], x2 + DX2[DIR_MP0], x3 + DX3[DIR_MP0], DIR_MP0);
+ distributions->setDistributionInvForDirection(f[DIR_MM0], x1 + DX1[DIR_PP0], x2 + DX2[DIR_PP0], x3 + DX3[DIR_PP0], DIR_PP0);
+ distributions->setDistributionInvForDirection(f[DIR_0MP], x1 + DX1[DIR_0PM], x2 + DX2[DIR_0PM], x3 + DX3[DIR_0PM], DIR_0PM);
+ distributions->setDistributionInvForDirection(f[DIR_0MM], x1 + DX1[DIR_0PP], x2 + DX2[DIR_0PP], x3 + DX3[DIR_0PP], DIR_0PP);
+ distributions->setDistributionInvForDirection(f[DIR_PMP], x1 + DX1[DIR_MPM], x2 + DX2[DIR_MPM], x3 + DX3[DIR_MPM], DIR_MPM);
+ distributions->setDistributionInvForDirection(f[DIR_MMP], x1 + DX1[DIR_PPM], x2 + DX2[DIR_PPM], x3 + DX3[DIR_PPM], DIR_PPM);
+ distributions->setDistributionInvForDirection(f[DIR_PMM], x1 + DX1[DIR_MPP], x2 + DX2[DIR_MPP], x3 + DX3[DIR_MPP], DIR_MPP);
+ distributions->setDistributionInvForDirection(f[DIR_MMM], x1 + DX1[DIR_PPP], x2 + DX2[DIR_PPP], x3 + DX3[DIR_PPP], DIR_PPP);
+ break;
+ case DIR_00P:
+ delf = (-velocity + vx3) * BCVeloWeight;
+ f[DIR_00P] = ftemp[DIR_00P] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_00P] -
+ delf * WEIGTH[DIR_00P];
+ f[DIR_P0P] = ftemp[DIR_P0P] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_P0P] -
+ delf * WEIGTH[DIR_P0P];
+ f[DIR_M0P] = ftemp[DIR_M0P] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_M0P] -
+ delf * WEIGTH[DIR_M0P];
+ f[DIR_0PP] = ftemp[DIR_0PP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_0PP] -
+ delf * WEIGTH[DIR_0PP];
+ f[DIR_0MP] = ftemp[DIR_0MP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_0MP] -
+ delf * WEIGTH[DIR_0MP];
+ f[DIR_PPP] = ftemp[DIR_PPP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_PPP] -
+ delf * WEIGTH[DIR_PPP];
+ f[DIR_MPP] = ftemp[DIR_MPP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_MPP] -
+ delf * WEIGTH[DIR_MPP];
+ f[DIR_PMP] = ftemp[DIR_PMP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_PMP] -
+ delf * WEIGTH[DIR_PMP];
+ f[DIR_MMP] = ftemp[DIR_MMP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_MMP] -
+ delf * WEIGTH[DIR_MMP];
+
+ distributions->setDistributionInvForDirection(f[DIR_00P], x1 + DX1[DIR_00M], x2 + DX2[DIR_00M], x3 + DX3[DIR_00M], DIR_00M);
+ distributions->setDistributionInvForDirection(f[DIR_P0P], x1 + DX1[DIR_M0M], x2 + DX2[DIR_M0M], x3 + DX3[DIR_M0M], DIR_M0M);
+ distributions->setDistributionInvForDirection(f[DIR_M0P], x1 + DX1[DIR_P0M], x2 + DX2[DIR_P0M], x3 + DX3[DIR_P0M], DIR_P0M);
+ distributions->setDistributionInvForDirection(f[DIR_0PP], x1 + DX1[DIR_0MM], x2 + DX2[DIR_0MM], x3 + DX3[DIR_0MM], DIR_0MM);
+ distributions->setDistributionInvForDirection(f[DIR_0MP], x1 + DX1[DIR_0PM], x2 + DX2[DIR_0PM], x3 + DX3[DIR_0PM], DIR_0PM);
+ distributions->setDistributionInvForDirection(f[DIR_PPP], x1 + DX1[DIR_MMM], x2 + DX2[DIR_MMM], x3 + DX3[DIR_MMM], DIR_MMM);
+ distributions->setDistributionInvForDirection(f[DIR_MPP], x1 + DX1[DIR_PMM], x2 + DX2[DIR_PMM], x3 + DX3[DIR_PMM], DIR_PMM);
+ distributions->setDistributionInvForDirection(f[DIR_PMP], x1 + DX1[DIR_MPM], x2 + DX2[DIR_MPM], x3 + DX3[DIR_MPM], DIR_MPM);
+ distributions->setDistributionInvForDirection(f[DIR_MMP], x1 + DX1[DIR_PPM], x2 + DX2[DIR_PPM], x3 + DX3[DIR_PPM], DIR_PPM);
+ break;
+ case DIR_00M:
+ delf = (-velocity - vx3) * BCVeloWeight;
+ f[DIR_00M] = ftemp[DIR_00M] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_00M] -
+ delf * WEIGTH[DIR_00M];
+ f[DIR_P0M] = ftemp[DIR_P0M] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_P0M] -
+ delf * WEIGTH[DIR_P0M];
+ f[DIR_M0M] = ftemp[DIR_M0M] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_M0M] -
+ delf * WEIGTH[DIR_M0M];
+ f[DIR_0PM] = ftemp[DIR_0PM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_0PM] -
+ delf * WEIGTH[DIR_0PM];
+ f[DIR_0MM] = ftemp[DIR_0MM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_0MM] -
+ delf * WEIGTH[DIR_0MM];
+ f[DIR_PPM] = ftemp[DIR_PPM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_PPM] -
+ delf * WEIGTH[DIR_PPM];
+ f[DIR_MPM] = ftemp[DIR_MPM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_MPM] -
+ delf * WEIGTH[DIR_MPM];
+ f[DIR_PMM] = ftemp[DIR_PMM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_PMM] -
+ delf * WEIGTH[DIR_PMM];
+ f[DIR_MMM] = ftemp[DIR_MMM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_MMM] -
+ delf * WEIGTH[DIR_MMM];
+
+ distributions->setDistributionInvForDirection(f[DIR_00M], x1 + DX1[DIR_00P], x2 + DX2[DIR_00P], x3 + DX3[DIR_00P], DIR_00P);
+ distributions->setDistributionInvForDirection(f[DIR_P0M], x1 + DX1[DIR_M0P], x2 + DX2[DIR_M0P], x3 + DX3[DIR_M0P], DIR_M0P);
+ distributions->setDistributionInvForDirection(f[DIR_M0M], x1 + DX1[DIR_P0P], x2 + DX2[DIR_P0P], x3 + DX3[DIR_P0P], DIR_P0P);
+ distributions->setDistributionInvForDirection(f[DIR_0PM], x1 + DX1[DIR_0MP], x2 + DX2[DIR_0MP], x3 + DX3[DIR_0MP], DIR_0MP);
+ distributions->setDistributionInvForDirection(f[DIR_0MM], x1 + DX1[DIR_0PP], x2 + DX2[DIR_0PP], x3 + DX3[DIR_0PP], DIR_0PP);
+ distributions->setDistributionInvForDirection(f[DIR_PPM], x1 + DX1[DIR_MMP], x2 + DX2[DIR_MMP], x3 + DX3[DIR_MMP], DIR_MMP);
+ distributions->setDistributionInvForDirection(f[DIR_MPM], x1 + DX1[DIR_PMP], x2 + DX2[DIR_PMP], x3 + DX3[DIR_PMP], DIR_PMP);
+ distributions->setDistributionInvForDirection(f[DIR_PMM], x1 + DX1[DIR_MPP], x2 + DX2[DIR_MPP], x3 + DX3[DIR_MPP], DIR_MPP);
+ distributions->setDistributionInvForDirection(f[DIR_MMM], x1 + DX1[DIR_PPP], x2 + DX2[DIR_PPP], x3 + DX3[DIR_PPP], DIR_PPP);
+ break;
+ default:
+ UB_THROW(
+ UbException(UB_EXARGS, "It isn't implemented non reflecting density boundary for this direction!"));
+ }
+}
diff --git a/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingInflowBCAlgorithm.h b/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingInflowBCAlgorithm.h
new file mode 100644
index 000000000..1f3e87ce3
--- /dev/null
+++ b/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingInflowBCAlgorithm.h
@@ -0,0 +1,50 @@
+//=======================================================================================
+// ____ ____ __ ______ __________ __ __ __ __
+// \ \ | | | | | _ \ |___ ___| | | | | / \ | |
+// \ \ | | | | | |_) | | | | | | | / \ | |
+// \ \ | | | | | _ / | | | | | | / /\ \ | |
+// \ \ | | | | | | \ \ | | | \__/ | / ____ \ | |____
+// \ \ | | |__| |__| \__\ |__| \________/ /__/ \__\ |_______|
+// \ \ | | ________________________________________________________________
+// \ \ | | | ______________________________________________________________|
+// \ \| | | | __ __ __ __ ______ _______
+// \ | | |_____ | | | | | | | | | _ \ / _____)
+// \ | | _____| | | | | | | | | | | \ \ \_______
+// \ | | | | |_____ | \_/ | | | | |_/ / _____ |
+// \ _____| |__| |________| \_______/ |__| |______/ (_______/
+//
+// This file is part of VirtualFluids. VirtualFluids is free software: you can
+// redistribute it and/or modify it under the terms of the GNU General Public
+// License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// VirtualFluids is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with VirtualFluids (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
+//
+//! \file NonReflectingInflowBCAlgorithm.h
+//! \ingroup BoundarConditions
+//! \author Hussein Alihussein
+//=======================================================================================
+#ifndef NonReflectingInflowBCAlgorithm_h__
+#define NonReflectingInflowBCAlgorithm_h__
+
+#include "BCAlgorithm.h"
+#include <PointerDefinitions.h>
+
+class DistributionArray3D;
+
+class NonReflectingInflowBCAlgorithm : public BCAlgorithm
+{
+public:
+ NonReflectingInflowBCAlgorithm();
+ ~NonReflectingInflowBCAlgorithm() override;
+ SPtr<BCAlgorithm> clone() override;
+ void addDistributions(SPtr<DistributionArray3D> distributions) override;
+ void applyBC() override;
+};
+#endif // NonReflectingDensityBCAlgorithm_h__
diff --git a/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingOutflowBCAlgorithmWithRelaxation.cpp b/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingOutflowBCAlgorithmWithRelaxation.cpp
new file mode 100644
index 000000000..ce2c5a626
--- /dev/null
+++ b/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingOutflowBCAlgorithmWithRelaxation.cpp
@@ -0,0 +1,233 @@
+//=======================================================================================
+// ____ ____ __ ______ __________ __ __ __ __
+// \ \ | | | | | _ \ |___ ___| | | | | / \ | |
+// \ \ | | | | | |_) | | | | | | | / \ | |
+// \ \ | | | | | _ / | | | | | | / /\ \ | |
+// \ \ | | | | | | \ \ | | | \__/ | / ____ \ | |____
+// \ \ | | |__| |__| \__\ |__| \________/ /__/ \__\ |_______|
+// \ \ | | ________________________________________________________________
+// \ \ | | | ______________________________________________________________|
+// \ \| | | | __ __ __ __ ______ _______
+// \ | | |_____ | | | | | | | | | _ \ / _____)
+// \ | | _____| | | | | | | | | | | \ \ \_______
+// \ | | | | |_____ | \_/ | | | | |_/ / _____ |
+// \ _____| |__| |________| \_______/ |__| |______/ (_______/
+//
+// This file is part of VirtualFluids. VirtualFluids is free software: you can
+// redistribute it and/or modify it under the terms of the GNU General Public
+// License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// VirtualFluids is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with VirtualFluids (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
+//
+//! \file NonReflectingOutflowBCAlgorithmWithRelaxation.cpp
+//! \ingroup BoundarConditions
+//! \author Konstantin Kutscher, Hussein Alihussein
+//=======================================================================================
+#include "NonReflectingOutflowBCAlgorithmWithRelaxation.h"
+
+#include "BoundaryConditions.h"
+#include "D3Q27System.h"
+#include "DistributionArray3D.h"
+
+NonReflectingOutflowBCAlgorithmWithRelaxation::NonReflectingOutflowBCAlgorithmWithRelaxation()
+{
+ BCAlgorithm::type = BCAlgorithm::NonReflectingOutflowBCAlgorithmWithRelaxation;
+ BCAlgorithm::preCollision = true;
+}
+//////////////////////////////////////////////////////////////////////////
+NonReflectingOutflowBCAlgorithmWithRelaxation::~NonReflectingOutflowBCAlgorithmWithRelaxation() = default;
+//////////////////////////////////////////////////////////////////////////
+SPtr<BCAlgorithm> NonReflectingOutflowBCAlgorithmWithRelaxation::clone()
+{
+ SPtr<BCAlgorithm> bc(new NonReflectingOutflowBCAlgorithmWithRelaxation());
+ return bc;
+}
+//////////////////////////////////////////////////////////////////////////
+void NonReflectingOutflowBCAlgorithmWithRelaxation::addDistributions(SPtr<DistributionArray3D> distributions)
+{
+ this->distributions = distributions;
+}
+//////////////////////////////////////////////////////////////////////////
+void NonReflectingOutflowBCAlgorithmWithRelaxation::applyBC()
+{
+ using namespace vf::lbm::dir;
+
+ using namespace D3Q27System;
+ // using namespace UbMath;
+ using namespace vf::lbm::constant;
+
+ LBMReal f[ENDF + 1];
+ LBMReal ftemp[ENDF + 1];
+
+ int nx1 = x1;
+ int nx2 = x2;
+ int nx3 = x3;
+ int direction = -1;
+
+ // flag points in direction of fluid
+ if (bcPtr->hasDensityBoundaryFlag(DIR_P00)) {
+ nx1 += 1;
+ direction = DIR_P00;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_M00)) {
+ nx1 -= 1;
+ direction = DIR_M00;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_0P0)) {
+ nx2 += 1;
+ direction = DIR_0P0;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_0M0)) {
+ nx2 -= 1;
+ direction = DIR_0M0;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_00P)) {
+ nx3 += 1;
+ direction = DIR_00P;
+ } else if (bcPtr->hasDensityBoundaryFlag(DIR_00M)) {
+ nx3 -= 1;
+ direction = DIR_00M;
+ } else
+ UB_THROW(UbException(UB_EXARGS, "Danger...no orthogonal BC-Flag on density boundary..."));
+
+ distributions->getDistribution(f, x1, x2, x3);
+ distributions->getDistribution(ftemp, nx1, nx2, nx3);
+
+ LBMReal rho, vx1, vx2, vx3;
+ calcMacrosFct(f, rho, vx1, vx2, vx3);
+ LBMReal delf = rho*0.01;
+ switch (direction) {
+ case DIR_P00:
+ f[DIR_P00] = ftemp[DIR_P00] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P00] - delf* WEIGTH[DIR_P00];
+ f[DIR_PP0] = ftemp[DIR_PP0] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PP0]- delf* WEIGTH[DIR_PP0];
+ f[DIR_PM0] = ftemp[DIR_PM0] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PM0]- delf* WEIGTH[DIR_PM0];
+ f[DIR_P0P] = ftemp[DIR_P0P] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P0P]- delf* WEIGTH[DIR_P0P];
+ f[DIR_P0M] = ftemp[DIR_P0M] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_P0M]- delf* WEIGTH[DIR_P0M];
+ f[DIR_PPP] = ftemp[DIR_PPP] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PPP]- delf* WEIGTH[DIR_PPP];
+ f[DIR_PMP] = ftemp[DIR_PMP] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PMP]- delf* WEIGTH[DIR_PMP];
+ f[DIR_PPM] = ftemp[DIR_PPM] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PPM]- delf* WEIGTH[DIR_PPM];
+ f[DIR_PMM] = ftemp[DIR_PMM] * (one_over_sqrt3 + vx1) + (1.0 - one_over_sqrt3 - vx1) * f[DIR_PMM]- delf* WEIGTH[DIR_PMM];
+
+ distributions->setDistributionInvForDirection(f[DIR_P00], x1 + DX1[DIR_M00], x2 + DX2[DIR_M00], x3 + DX3[DIR_M00], DIR_M00);
+ distributions->setDistributionInvForDirection(f[DIR_PP0], x1 + DX1[DIR_MM0], x2 + DX2[DIR_MM0], x3 + DX3[DIR_MM0], DIR_MM0);
+ distributions->setDistributionInvForDirection(f[DIR_PM0], x1 + DX1[DIR_MP0], x2 + DX2[DIR_MP0], x3 + DX3[DIR_MP0], DIR_MP0);
+ distributions->setDistributionInvForDirection(f[DIR_P0P], x1 + DX1[DIR_M0M], x2 + DX2[DIR_M0M], x3 + DX3[DIR_M0M], DIR_M0M);
+ distributions->setDistributionInvForDirection(f[DIR_P0M], x1 + DX1[DIR_M0P], x2 + DX2[DIR_M0P], x3 + DX3[DIR_M0P], DIR_M0P);
+ distributions->setDistributionInvForDirection(f[DIR_PPP], x1 + DX1[DIR_MMM], x2 + DX2[DIR_MMM], x3 + DX3[DIR_MMM], DIR_MMM);
+ distributions->setDistributionInvForDirection(f[DIR_PMP], x1 + DX1[DIR_MPM], x2 + DX2[DIR_MPM], x3 + DX3[DIR_MPM], DIR_MPM);
+ distributions->setDistributionInvForDirection(f[DIR_PPM], x1 + DX1[DIR_MMP], x2 + DX2[DIR_MMP], x3 + DX3[DIR_MMP], DIR_MMP);
+ distributions->setDistributionInvForDirection(f[DIR_PMM], x1 + DX1[DIR_MPP], x2 + DX2[DIR_MPP], x3 + DX3[DIR_MPP], DIR_MPP);
+ break;
+ case DIR_M00:
+ f[DIR_M00] = ftemp[DIR_M00] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_M00]- delf* WEIGTH[DIR_M00];
+ f[DIR_MP0] = ftemp[DIR_MP0] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MP0]- delf* WEIGTH[DIR_MP0];
+ f[DIR_MM0] = ftemp[DIR_MM0] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MM0]- delf* WEIGTH[DIR_MM0];
+ f[DIR_M0P] = ftemp[DIR_M0P] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_M0P]- delf* WEIGTH[DIR_M0P];
+ f[DIR_M0M] = ftemp[DIR_M0M] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_M0M]- delf* WEIGTH[DIR_M0M];
+ f[DIR_MPP] = ftemp[DIR_MPP] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MPP]- delf* WEIGTH[DIR_MPP];
+ f[DIR_MMP] = ftemp[DIR_MMP] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MMP]- delf* WEIGTH[DIR_MMP];
+ f[DIR_MPM] = ftemp[DIR_MPM] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MPM]- delf* WEIGTH[DIR_MPM];
+ f[DIR_MMM] = ftemp[DIR_MMM] * (one_over_sqrt3 - vx1) + (1.0 - one_over_sqrt3 + vx1) * f[DIR_MMM]- delf* WEIGTH[DIR_MMM];
+
+ distributions->setDistributionInvForDirection(f[DIR_M00], x1 + DX1[DIR_P00], x2 + DX2[DIR_P00], x3 + DX3[DIR_P00], DIR_P00);
+ distributions->setDistributionInvForDirection(f[DIR_MP0], x1 + DX1[DIR_PM0], x2 + DX2[DIR_PM0], x3 + DX3[DIR_PM0], DIR_PM0);
+ distributions->setDistributionInvForDirection(f[DIR_MM0], x1 + DX1[DIR_PP0], x2 + DX2[DIR_PP0], x3 + DX3[DIR_PP0], DIR_PP0);
+ distributions->setDistributionInvForDirection(f[DIR_M0P], x1 + DX1[DIR_P0M], x2 + DX2[DIR_P0M], x3 + DX3[DIR_P0M], DIR_P0M);
+ distributions->setDistributionInvForDirection(f[DIR_M0M], x1 + DX1[DIR_P0P], x2 + DX2[DIR_P0P], x3 + DX3[DIR_P0P], DIR_P0P);
+ distributions->setDistributionInvForDirection(f[DIR_MPP], x1 + DX1[DIR_PMM], x2 + DX2[DIR_PMM], x3 + DX3[DIR_PMM], DIR_PMM);
+ distributions->setDistributionInvForDirection(f[DIR_MMP], x1 + DX1[DIR_PPM], x2 + DX2[DIR_PPM], x3 + DX3[DIR_PPM], DIR_PPM);
+ distributions->setDistributionInvForDirection(f[DIR_MPM], x1 + DX1[DIR_PMP], x2 + DX2[DIR_PMP], x3 + DX3[DIR_PMP], DIR_PMP);
+ distributions->setDistributionInvForDirection(f[DIR_MMM], x1 + DX1[DIR_PPP], x2 + DX2[DIR_PPP], x3 + DX3[DIR_PPP], DIR_PPP);
+ break;
+ case DIR_0P0:
+ f[DIR_0P0] = ftemp[DIR_0P0] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_0P0]- delf* WEIGTH[DIR_0P0];
+ f[DIR_PP0] = ftemp[DIR_PP0] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_PP0]- delf* WEIGTH[DIR_PP0];
+ f[DIR_MP0] = ftemp[DIR_MP0] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_MP0]- delf* WEIGTH[DIR_MP0];
+ f[DIR_0PP] = ftemp[DIR_0PP] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_0PP]- delf* WEIGTH[DIR_0PP];
+ f[DIR_0PM] = ftemp[DIR_0PM] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_0PM]- delf* WEIGTH[DIR_0PM];
+ f[DIR_PPP] = ftemp[DIR_PPP] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_PPP]- delf* WEIGTH[DIR_PPP];
+ f[DIR_MPP] = ftemp[DIR_MPP] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_MPP]- delf* WEIGTH[DIR_MPP];
+ f[DIR_PPM] = ftemp[DIR_PPM] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_PPM]- delf* WEIGTH[DIR_PPM];
+ f[DIR_MPM] = ftemp[DIR_MPM] * (one_over_sqrt3 + vx2) + (1.0 - one_over_sqrt3 - vx2) * f[DIR_MPM]- delf* WEIGTH[DIR_MPM];
+
+ distributions->setDistributionInvForDirection(f[DIR_0P0], x1 + DX1[DIR_0M0], x2 + DX2[DIR_0M0], x3 + DX3[DIR_0M0], DIR_0M0);
+ distributions->setDistributionInvForDirection(f[DIR_PP0], x1 + DX1[DIR_MM0], x2 + DX2[DIR_MM0], x3 + DX3[DIR_MM0], DIR_MM0);
+ distributions->setDistributionInvForDirection(f[DIR_MP0], x1 + DX1[DIR_PM0], x2 + DX2[DIR_PM0], x3 + DX3[DIR_PM0], DIR_PM0);
+ distributions->setDistributionInvForDirection(f[DIR_0PP], x1 + DX1[DIR_0MM], x2 + DX2[DIR_0MM], x3 + DX3[DIR_0MM], DIR_0MM);
+ distributions->setDistributionInvForDirection(f[DIR_0PM], x1 + DX1[DIR_0MP], x2 + DX2[DIR_0MP], x3 + DX3[DIR_0MP], DIR_0MP);
+ distributions->setDistributionInvForDirection(f[DIR_PPP], x1 + DX1[DIR_MMM], x2 + DX2[DIR_MMM], x3 + DX3[DIR_MMM], DIR_MMM);
+ distributions->setDistributionInvForDirection(f[DIR_MPP], x1 + DX1[DIR_PMM], x2 + DX2[DIR_PMM], x3 + DX3[DIR_PMM], DIR_PMM);
+ distributions->setDistributionInvForDirection(f[DIR_PPM], x1 + DX1[DIR_MMP], x2 + DX2[DIR_MMP], x3 + DX3[DIR_MMP], DIR_MMP);
+ distributions->setDistributionInvForDirection(f[DIR_MPM], x1 + DX1[DIR_PMP], x2 + DX2[DIR_PMP], x3 + DX3[DIR_PMP], DIR_PMP);
+ break;
+ case DIR_0M0:
+ f[DIR_0M0] = ftemp[DIR_0M0] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_0M0]- delf* WEIGTH[DIR_0M0];
+ f[DIR_PM0] = ftemp[DIR_PM0] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_PM0]- delf* WEIGTH[DIR_PM0];
+ f[DIR_MM0] = ftemp[DIR_MM0] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_MM0]- delf* WEIGTH[DIR_MM0];
+ f[DIR_0MP] = ftemp[DIR_0MP] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_0MP]- delf* WEIGTH[DIR_0MP];
+ f[DIR_0MM] = ftemp[DIR_0MM] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_0MM]- delf* WEIGTH[DIR_0MM];
+ f[DIR_PMP] = ftemp[DIR_PMP] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_PMP]- delf* WEIGTH[DIR_PMP];
+ f[DIR_MMP] = ftemp[DIR_MMP] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_MMP]- delf* WEIGTH[DIR_MMP];
+ f[DIR_PMM] = ftemp[DIR_PMM] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_PMM]- delf* WEIGTH[DIR_PMM];
+ f[DIR_MMM] = ftemp[DIR_MMM] * (one_over_sqrt3 - vx2) + (1.0 - one_over_sqrt3 + vx2) * f[DIR_MMM]- delf* WEIGTH[DIR_MMM];
+
+ distributions->setDistributionInvForDirection(f[DIR_0M0], x1 + DX1[DIR_0P0], x2 + DX2[DIR_0P0], x3 + DX3[DIR_0P0], DIR_0P0);
+ distributions->setDistributionInvForDirection(f[DIR_PM0], x1 + DX1[DIR_MP0], x2 + DX2[DIR_MP0], x3 + DX3[DIR_MP0], DIR_MP0);
+ distributions->setDistributionInvForDirection(f[DIR_MM0], x1 + DX1[DIR_PP0], x2 + DX2[DIR_PP0], x3 + DX3[DIR_PP0], DIR_PP0);
+ distributions->setDistributionInvForDirection(f[DIR_0MP], x1 + DX1[DIR_0PM], x2 + DX2[DIR_0PM], x3 + DX3[DIR_0PM], DIR_0PM);
+ distributions->setDistributionInvForDirection(f[DIR_0MM], x1 + DX1[DIR_0PP], x2 + DX2[DIR_0PP], x3 + DX3[DIR_0PP], DIR_0PP);
+ distributions->setDistributionInvForDirection(f[DIR_PMP], x1 + DX1[DIR_MPM], x2 + DX2[DIR_MPM], x3 + DX3[DIR_MPM], DIR_MPM);
+ distributions->setDistributionInvForDirection(f[DIR_MMP], x1 + DX1[DIR_PPM], x2 + DX2[DIR_PPM], x3 + DX3[DIR_PPM], DIR_PPM);
+ distributions->setDistributionInvForDirection(f[DIR_PMM], x1 + DX1[DIR_MPP], x2 + DX2[DIR_MPP], x3 + DX3[DIR_MPP], DIR_MPP);
+ distributions->setDistributionInvForDirection(f[DIR_MMM], x1 + DX1[DIR_PPP], x2 + DX2[DIR_PPP], x3 + DX3[DIR_PPP], DIR_PPP);
+ break;
+ case DIR_00P:
+ f[DIR_00P] = ftemp[DIR_00P] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_00P]- delf* WEIGTH[DIR_00P];
+ f[DIR_P0P] = ftemp[DIR_P0P] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_P0P]- delf* WEIGTH[DIR_P0P];
+ f[DIR_M0P] = ftemp[DIR_M0P] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_M0P]- delf* WEIGTH[DIR_M0P];
+ f[DIR_0PP] = ftemp[DIR_0PP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_0PP]- delf* WEIGTH[DIR_0PP];
+ f[DIR_0MP] = ftemp[DIR_0MP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_0MP]- delf* WEIGTH[DIR_0MP];
+ f[DIR_PPP] = ftemp[DIR_PPP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_PPP]- delf* WEIGTH[DIR_PPP];
+ f[DIR_MPP] = ftemp[DIR_MPP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_MPP]- delf* WEIGTH[DIR_MPP];
+ f[DIR_PMP] = ftemp[DIR_PMP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_PMP]- delf* WEIGTH[DIR_PMP];
+ f[DIR_MMP] = ftemp[DIR_MMP] * (one_over_sqrt3 + vx3) + (1.0 - one_over_sqrt3 - vx3) * f[DIR_MMP]- delf* WEIGTH[DIR_MMP];
+
+ distributions->setDistributionInvForDirection(f[DIR_00P], x1 + DX1[DIR_00M], x2 + DX2[DIR_00M], x3 + DX3[DIR_00M], DIR_00M);
+ distributions->setDistributionInvForDirection(f[DIR_P0P], x1 + DX1[DIR_M0M], x2 + DX2[DIR_M0M], x3 + DX3[DIR_M0M], DIR_M0M);
+ distributions->setDistributionInvForDirection(f[DIR_M0P], x1 + DX1[DIR_P0M], x2 + DX2[DIR_P0M], x3 + DX3[DIR_P0M], DIR_P0M);
+ distributions->setDistributionInvForDirection(f[DIR_0PP], x1 + DX1[DIR_0MM], x2 + DX2[DIR_0MM], x3 + DX3[DIR_0MM], DIR_0MM);
+ distributions->setDistributionInvForDirection(f[DIR_0MP], x1 + DX1[DIR_0PM], x2 + DX2[DIR_0PM], x3 + DX3[DIR_0PM], DIR_0PM);
+ distributions->setDistributionInvForDirection(f[DIR_PPP], x1 + DX1[DIR_MMM], x2 + DX2[DIR_MMM], x3 + DX3[DIR_MMM], DIR_MMM);
+ distributions->setDistributionInvForDirection(f[DIR_MPP], x1 + DX1[DIR_PMM], x2 + DX2[DIR_PMM], x3 + DX3[DIR_PMM], DIR_PMM);
+ distributions->setDistributionInvForDirection(f[DIR_PMP], x1 + DX1[DIR_MPM], x2 + DX2[DIR_MPM], x3 + DX3[DIR_MPM], DIR_MPM);
+ distributions->setDistributionInvForDirection(f[DIR_MMP], x1 + DX1[DIR_PPM], x2 + DX2[DIR_PPM], x3 + DX3[DIR_PPM], DIR_PPM);
+ break;
+ case DIR_00M:
+ f[DIR_00M] = ftemp[DIR_00M] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_00M]- delf* WEIGTH[DIR_00M];
+ f[DIR_P0M] = ftemp[DIR_P0M] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_P0M]- delf* WEIGTH[DIR_P0M];
+ f[DIR_M0M] = ftemp[DIR_M0M] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_M0M]- delf* WEIGTH[DIR_M0M];
+ f[DIR_0PM] = ftemp[DIR_0PM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_0PM]- delf* WEIGTH[DIR_0PM];
+ f[DIR_0MM] = ftemp[DIR_0MM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_0MM]- delf* WEIGTH[DIR_0MM];
+ f[DIR_PPM] = ftemp[DIR_PPM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_PPM]- delf* WEIGTH[DIR_PPM];
+ f[DIR_MPM] = ftemp[DIR_MPM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_MPM]- delf* WEIGTH[DIR_MPM];
+ f[DIR_PMM] = ftemp[DIR_PMM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_PMM]- delf* WEIGTH[DIR_PMM];
+ f[DIR_MMM] = ftemp[DIR_MMM] * (one_over_sqrt3 - vx3) + (1.0 - one_over_sqrt3 + vx3) * f[DIR_MMM]- delf* WEIGTH[DIR_MMM];
+
+ distributions->setDistributionInvForDirection(f[DIR_00M], x1 + DX1[DIR_00P], x2 + DX2[DIR_00P], x3 + DX3[DIR_00P], DIR_00P);
+ distributions->setDistributionInvForDirection(f[DIR_P0M], x1 + DX1[DIR_M0P], x2 + DX2[DIR_M0P], x3 + DX3[DIR_M0P], DIR_M0P);
+ distributions->setDistributionInvForDirection(f[DIR_M0M], x1 + DX1[DIR_P0P], x2 + DX2[DIR_P0P], x3 + DX3[DIR_P0P], DIR_P0P);
+ distributions->setDistributionInvForDirection(f[DIR_0PM], x1 + DX1[DIR_0MP], x2 + DX2[DIR_0MP], x3 + DX3[DIR_0MP], DIR_0MP);
+ distributions->setDistributionInvForDirection(f[DIR_0MM], x1 + DX1[DIR_0PP], x2 + DX2[DIR_0PP], x3 + DX3[DIR_0PP], DIR_0PP);
+ distributions->setDistributionInvForDirection(f[DIR_PPM], x1 + DX1[DIR_MMP], x2 + DX2[DIR_MMP], x3 + DX3[DIR_MMP], DIR_MMP);
+ distributions->setDistributionInvForDirection(f[DIR_MPM], x1 + DX1[DIR_PMP], x2 + DX2[DIR_PMP], x3 + DX3[DIR_PMP], DIR_PMP);
+ distributions->setDistributionInvForDirection(f[DIR_PMM], x1 + DX1[DIR_MPP], x2 + DX2[DIR_MPP], x3 + DX3[DIR_MPP], DIR_MPP);
+ distributions->setDistributionInvForDirection(f[DIR_MMM], x1 + DX1[DIR_PPP], x2 + DX2[DIR_PPP], x3 + DX3[DIR_PPP], DIR_PPP);
+ break;
+ default:
+ UB_THROW(
+ UbException(UB_EXARGS, "It isn't implemented non reflecting density boundary for this direction!"));
+ }
+}
diff --git a/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingOutflowBCAlgorithmWithRelaxation.h b/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingOutflowBCAlgorithmWithRelaxation.h
new file mode 100644
index 000000000..97badb60d
--- /dev/null
+++ b/src/cpu/VirtualFluidsCore/BoundaryConditions/NonReflectingOutflowBCAlgorithmWithRelaxation.h
@@ -0,0 +1,50 @@
+//=======================================================================================
+// ____ ____ __ ______ __________ __ __ __ __
+// \ \ | | | | | _ \ |___ ___| | | | | / \ | |
+// \ \ | | | | | |_) | | | | | | | / \ | |
+// \ \ | | | | | _ / | | | | | | / /\ \ | |
+// \ \ | | | | | | \ \ | | | \__/ | / ____ \ | |____
+// \ \ | | |__| |__| \__\ |__| \________/ /__/ \__\ |_______|
+// \ \ | | ________________________________________________________________
+// \ \ | | | ______________________________________________________________|
+// \ \| | | | __ __ __ __ ______ _______
+// \ | | |_____ | | | | | | | | | _ \ / _____)
+// \ | | _____| | | | | | | | | | | \ \ \_______
+// \ | | | | |_____ | \_/ | | | | |_/ / _____ |
+// \ _____| |__| |________| \_______/ |__| |______/ (_______/
+//
+// This file is part of VirtualFluids. VirtualFluids is free software: you can
+// redistribute it and/or modify it under the terms of the GNU General Public
+// License as published by the Free Software Foundation, either version 3 of
+// the License, or (at your option) any later version.
+//
+// VirtualFluids is distributed in the hope that it will be useful, but WITHOUT
+// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with VirtualFluids (see COPYING.txt). If not, see <http://www.gnu.org/licenses/>.
+//
+//! \file NonReflectingOutflowBCAlgorithmWithRelaxation.h
+//! \ingroup BoundarConditions
+//! \author Konstantin Kutscher, Hussein Alihussein
+//=======================================================================================
+#ifndef NonReflectingOutflowBCAlgorithmWithRelaxation_h__
+#define NonReflectingOutflowBCAlgorithmWithRelaxation_h__
+
+#include "BCAlgorithm.h"
+#include <PointerDefinitions.h>
+
+class DistributionArray3D;
+
+class NonReflectingOutflowBCAlgorithmWithRelaxation : public BCAlgorithm
+{
+public:
+ NonReflectingOutflowBCAlgorithmWithRelaxation();
+ ~NonReflectingOutflowBCAlgorithmWithRelaxation() override;
+ SPtr<BCAlgorithm> clone() override;
+ void addDistributions(SPtr<DistributionArray3D> distributions) override;
+ void applyBC() override;
+};
+#endif // NonReflectingDensityBCAlgorithm_h__
--
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