diff --git a/src/gpu/VirtualFluids_GPU/DataStructureInitializer/GridReaderFiles/GridReader.cpp b/src/gpu/VirtualFluids_GPU/DataStructureInitializer/GridReaderFiles/GridReader.cpp
index da4ba9d8b4ad094437ec17b17e7ea653842bf83e..eea34e6fb7b53e16387d48077296d5df22a3e031 100644
--- a/src/gpu/VirtualFluids_GPU/DataStructureInitializer/GridReaderFiles/GridReader.cpp
+++ b/src/gpu/VirtualFluids_GPU/DataStructureInitializer/GridReaderFiles/GridReader.cpp
@@ -634,7 +634,7 @@ void GridReader::setNoSlipQs(std::shared_ptr<BoundaryQs> boundaryQ) const
 			this->printQSize("no slip", boundaryQ, level);
 			this->setSizeNoSlip(boundaryQ, level);
 			this->initalQStruct(para->getParH(level)->noSlipBC, boundaryQ, level);
-            cudaMemoryManager->cudaCopyWallBC(level);
+            cudaMemoryManager->cudaCopyNoSlipBC(level);
 		}
 	}
 }
@@ -766,7 +766,7 @@ void GridReader::setSizeNoSlip(std::shared_ptr<BoundaryQs> boundaryQ, unsigned i
 {
 	para->getParH(level)->noSlipBC.numberOfBCnodes = boundaryQ->getSize(level);
 	para->getParD(level)->noSlipBC.numberOfBCnodes = para->getParH(level)->noSlipBC.numberOfBCnodes;
-    cudaMemoryManager->cudaAllocWallBC(level);
+    cudaMemoryManager->cudaAllocNoSlipBC(level);
 }
 
 void GridReader::setSizeGeoQs(std::shared_ptr<BoundaryQs> boundaryQ, unsigned int level) const
diff --git a/src/gpu/VirtualFluids_GPU/FindQ/DefineBCs.cpp b/src/gpu/VirtualFluids_GPU/FindQ/DefineBCs.cpp
index a67f1d987cb9636ee447c5f5acd1410c44cb6a62..a4e3123873ea82e0904efa31c9fc018dcc79c227 100644
--- a/src/gpu/VirtualFluids_GPU/FindQ/DefineBCs.cpp
+++ b/src/gpu/VirtualFluids_GPU/FindQ/DefineBCs.cpp
@@ -33,13 +33,13 @@ void findQ27(Parameter* para, CudaMemoryManager* cudaMemoryManager)
 	   para->getParD(lev)->noSlipBC.numberOfBCnodes = para->getParH(lev)->noSlipBC.numberOfBCnodes;
       printf("numberOfBCnodes= %d\n", para->getParH(lev)->noSlipBC.numberOfBCnodes);
 
-	  cudaMemoryManager->cudaAllocWallBC(lev);
+	  cudaMemoryManager->cudaAllocNoSlipBC(lev);
 
       findQ(para, lev);
  	  para->getParD(lev)->noSlipBC.numberOfBCnodes = para->getParH(lev)->noSlipBC.numberOfBCnodes;
       printf("numberOfBCnodes= %d\n", para->getParH(lev)->noSlipBC.numberOfBCnodes);
 
-	  cudaMemoryManager->cudaCopyWallBC(lev);
+	  cudaMemoryManager->cudaCopyNoSlipBC(lev);
    }
 }
 
diff --git a/src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.cpp b/src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.cpp
index 5267f83838dcf131c3a6ab41ec05467e174ccfe8..a2026863e126d8648def4ffff6bf8dd22a4a0ba5 100644
--- a/src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.cpp
+++ b/src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.cpp
@@ -275,8 +275,8 @@ void CudaMemoryManager::cudaFreeOutflowBC(int lev)
 	checkCudaErrors( cudaFreeHost(parameter->getParH(lev)->outflowBC.kN     ));
 	checkCudaErrors( cudaFreeHost(parameter->getParH(lev)->outflowBC.RhoBC  ));
 }
-//Wall
-void CudaMemoryManager::cudaAllocWallBC(int lev)
+//No-Slip
+void CudaMemoryManager::cudaAllocNoSlipBC(int lev)
 {
 	unsigned int mem_size_Q_k      = sizeof(int)*parameter->getParH(lev)->noSlipBC.numberOfBCnodes;
 	unsigned int mem_size_Q_q      = sizeof(real)*parameter->getParH(lev)->noSlipBC.numberOfBCnodes;
@@ -297,7 +297,7 @@ void CudaMemoryManager::cudaAllocWallBC(int lev)
 	double tmp = (double)mem_size_Q_k + (double)parameter->getD3Qxx()*(double)mem_size_Q_q;
 	setMemsizeGPU(tmp, false);
 }
-void CudaMemoryManager::cudaCopyWallBC(int lev)
+void CudaMemoryManager::cudaCopyNoSlipBC(int lev)
 {
 	unsigned int mem_size_Q_k = sizeof(int)*parameter->getParH(lev)->noSlipBC.numberOfBCnodes;
 	unsigned int mem_size_Q_q = sizeof(real)*parameter->getParH(lev)->noSlipBC.numberOfBCnodes;
@@ -305,7 +305,7 @@ void CudaMemoryManager::cudaCopyWallBC(int lev)
 	checkCudaErrors( cudaMemcpy(parameter->getParD(lev)->noSlipBC.q27[0], parameter->getParH(lev)->noSlipBC.q27[0], parameter->getD3Qxx()* mem_size_Q_q,       cudaMemcpyHostToDevice));
 	checkCudaErrors( cudaMemcpy(parameter->getParD(lev)->noSlipBC.k,      parameter->getParH(lev)->noSlipBC.k,                  mem_size_Q_k,       cudaMemcpyHostToDevice));
 }
-void CudaMemoryManager::cudaFreeWallBC(int lev)
+void CudaMemoryManager::cudaFreeNoSlipBC(int lev)
 {
 	checkCudaErrors( cudaFreeHost(parameter->getParH(lev)->noSlipBC.q27[0]));
 	checkCudaErrors( cudaFreeHost(parameter->getParH(lev)->noSlipBC.k));
diff --git a/src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.h b/src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.h
index 290a05671e5f2d60b08d634ac2b919cd8947cb96..a6a84f9218251df9f50d6e6cfcff8614cd3f5504 100644
--- a/src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.h
+++ b/src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.h
@@ -63,9 +63,9 @@ public:
 	void cudaCopyOutflowBC(int lev);
 	void cudaFreeOutflowBC(int lev);
 
-	void cudaAllocWallBC(int lev);
-	void cudaCopyWallBC(int lev);
-	void cudaFreeWallBC(int lev);
+	void cudaAllocNoSlipBC(int lev);
+	void cudaCopyNoSlipBC(int lev);
+	void cudaFreeNoSlipBC(int lev);
 
 	void cudaAllocGeomBC(int lev);
 	void cudaCopyGeomBC(int lev);