diff --git a/utilities/geometryPhasicFlow/cuboidWall/cuboidWall.C b/utilities/geometryPhasicFlow/cuboidWall/cuboidWall.C
index 8183e5a8..c1a90172 100755
--- a/utilities/geometryPhasicFlow/cuboidWall/cuboidWall.C
+++ b/utilities/geometryPhasicFlow/cuboidWall/cuboidWall.C
@@ -32,6 +32,9 @@ bool pFlow::cuboidWall::readcuboidWall
 	
 	auto 	center = dict.getVal<realx3>("center");
 	auto 	edgeLength= dict.getVal<realx3>("edgeLength");
+	auto numDivs = dict.getValOrSet<int32x3>("numDivs", int32x3(1,1,1));
+
+	numDivs = max(numDivs, int32x3(1,1,1));
 
 	realx3 p1,p2,p3,p4;
 
@@ -41,7 +44,7 @@ bool pFlow::cuboidWall::readcuboidWall
 	p3 = center + edgeLength*realx3(-0.5, 0.5, 0.5);
 	p4 = center + edgeLength*realx3(-0.5,-0.5, 0.5);
 
-	planeWall left(p1,p2,p3,p4);
+	planeWall left(p1,p2,p3,p4, numDivs.y(), numDivs.z());
 
 	for(const auto& t:left.triangles())
 	{
@@ -54,7 +57,7 @@ bool pFlow::cuboidWall::readcuboidWall
 	p3 = center + edgeLength*realx3( 0.5, 0.5, 0.5);
 	p4 = center + edgeLength*realx3( 0.5, 0.5,-0.5);
 
-	planeWall right(p1,p2,p3,p4);
+	planeWall right(p1,p2,p3,p4, numDivs.z(), numDivs.y());
 
 	for(const auto& t:right.triangles())
 	{
@@ -67,7 +70,7 @@ bool pFlow::cuboidWall::readcuboidWall
 	p3 = center + edgeLength*realx3( 0.5,-0.5, 0.5);
 	p4 = center + edgeLength*realx3( 0.5,-0.5,-0.5);
 
-	planeWall bottom(p1,p2,p3,p4);
+	planeWall bottom(p1,p2,p3,p4, numDivs.z(), numDivs.x());
 
 	for(const auto& t:bottom.triangles())
 	{
@@ -80,7 +83,7 @@ bool pFlow::cuboidWall::readcuboidWall
 	p3 = center + edgeLength*realx3( 0.5, 0.5, 0.5);
 	p4 = center + edgeLength*realx3(-0.5, 0.5, 0.5);
 
-	planeWall top(p1,p2,p3,p4);
+	planeWall top(p1,p2,p3,p4, numDivs.x(), numDivs.z());
 
 	for(const auto& t:top.triangles())
 	{
@@ -93,7 +96,8 @@ bool pFlow::cuboidWall::readcuboidWall
 	p3 = center + edgeLength*realx3( 0.5, 0.5,-0.5);
 	p4 = center + edgeLength*realx3(-0.5, 0.5,-0.5);
 
-	planeWall back(p1,p2,p3,p4);
+
+	planeWall back(p1,p2,p3,p4, numDivs.x(), numDivs.y());
 
 	for(const auto& t:back.triangles())
 	{
@@ -107,7 +111,7 @@ bool pFlow::cuboidWall::readcuboidWall
 	p3 = center + edgeLength*realx3( 0.5, 0.5, 0.5);
 	p4 = center + edgeLength*realx3( 0.5,-0.5, 0.5);
 
-	planeWall front(p1,p2,p3,p4);
+	planeWall front(p1,p2,p3,p4, numDivs.y(), numDivs.x());
 
 	for(const auto& t:front.triangles())
 	{
diff --git a/utilities/geometryPhasicFlow/planeWall/planeWall.C b/utilities/geometryPhasicFlow/planeWall/planeWall.C
index 97988793..7570d4fc 100755
--- a/utilities/geometryPhasicFlow/planeWall/planeWall.C
+++ b/utilities/geometryPhasicFlow/planeWall/planeWall.C
@@ -20,8 +20,7 @@ Licence:
 
 
 #include "planeWall.H"
-
-
+#include "line.H"
 
 bool pFlow::planeWall::readPlaneWall
 (
@@ -33,24 +32,21 @@ bool pFlow::planeWall::readPlaneWall
 	auto p3 = dict.getVal<realx3>("p3");
 	auto p4 = dict.getVal<realx3>("p4");
 
-	
-	if( Wall::checkTrianlge(p1,p2,p3) )
-	{
-		triangles_.push_back(realx3x3(p1,p2,p3));
-	}else
+	auto numDiv12 = max(dict.getValOrSet<int32>("numDiv12",1),1);
+	auto numDiv23 = max(dict.getValOrSet<int32>("numDiv23",1),1);
+
+
+	if(!checkFlatness(p1,p2,p3,p4))
 	{
 		fatalErrorInFunction << 
-		"points p1, p2 and p3 do not form a plane wall in dictionary " << dict.globalName()<<endl;
-		return false;
+		"points p1, p2, p3 and p4 do not form a plane wall in dictionary " << dict.globalName()<<endl;
+		return false;	
 	}
 
-	if( Wall::checkTrianlge(p3,p4,p1) )
+	if(!addPlaneWall(p1,p2,p3,p4,numDiv12,numDiv23))
 	{
-		triangles_.push_back(realx3x3(p3,p4,p1));
-	}else
-	{
-		fatalErrorInFunction << 
-		"points p3, p4 and p1 do not form a plane wall in dictionary " << dict.globalName()<<endl;
+		fatalErrorInFunction<<
+		"could not create plane wall from dictionary "<< dict.globalName()<<endl;
 		return false;
 	}
 
@@ -59,6 +55,81 @@ bool pFlow::planeWall::readPlaneWall
 }
 
 
+bool pFlow::planeWall::addWall4(
+		const realx3& p1,
+		const realx3& p2,
+		const realx3& p3,
+		const realx3& p4)
+{
+
+	if(!checkFlatness(p1,p2,p3,p4))return false;
+	
+	triangles_.push_back(realx3x3(p1,p2,p3));
+	triangles_.push_back(realx3x3(p3,p4,p1));
+	
+	return true;
+}
+
+bool pFlow::planeWall::checkFlatness(
+		const realx3& p1,
+		const realx3& p2,
+		const realx3& p3,
+		const realx3& p4)
+{
+	if( !Wall::checkTrianlge(p1,p2,p3) ) return false;
+	if( !Wall::checkTrianlge(p3,p4,p1) ) return false;
+	return true;
+}
+
+bool pFlow::planeWall::addPlaneWall(
+	const realx3& p1,
+	const realx3& p2,
+	const realx3& p3,
+	const realx3& p4,
+	int32 numDiv12,
+	int32 numDiv23 )
+{
+	real dt12 = 1.0/numDiv12;
+	real dt23 = 1.0/numDiv23;
+
+	real t12 = 0;
+	
+
+	line line12(p1,p2);
+	line line43(p4,p3);
+
+	for(int32 i=0; i<numDiv12; i++)
+	{
+
+		auto lp1 = line12.point(t12);
+		auto lp4 = line43.point(t12);
+		auto lp2 = line12.point(t12+dt12);
+		auto lp3 = line43.point(t12+dt12);
+
+		line line14(lp1,lp4);
+		line line23(lp2,lp3);
+		real t23 = 0;
+		for(int32 j=0; j<numDiv23; j++)
+		{
+			if(
+				!addWall4(
+					line14.point(t23),
+					line23.point(t23),
+					line23.point(t23+dt23),
+					line14.point(t23+dt23) )
+				)
+			{
+				return false;
+			}
+			t23+=dt23;
+		}
+		t12+=dt12;
+	}
+
+
+	return true;
+}
+
 pFlow::planeWall::planeWall()
 {}
 
@@ -79,26 +150,24 @@ pFlow::planeWall::planeWall(
 		const realx3& p1,
 		const realx3& p2,
 		const realx3& p3,
-		const realx3& p4)
+		const realx3& p4,
+		int32 numDiv12,
+		int32 numDiv23 )
 {
 
-	if( Wall::checkTrianlge(p1,p2,p3) )
+	if(!checkFlatness(p1,p2,p3,p4))
 	{
-		triangles_.push_back(realx3x3(p1,p2,p3));
-	}else
-	{
-		fatalErrorInFunction << 
-		"points p1, p2 and p3 do not form a plane wall "<<endl;
+		fatalErrorInFunction<<
+		"the input points p1, p2, p3, and p4 are not in the same plane "<<endl;
 		fatalExit;
 	}
 
-	if( Wall::checkTrianlge(p3,p4,p1) )
+	if(!addPlaneWall(p1,p2,p3,p4, numDiv12, numDiv23))
 	{
-		triangles_.push_back(realx3x3(p3,p4,p1));
-	}else
-	{
-		fatalErrorInFunction << 
-		"points p3, p4 and p1 do not form a plane wallendl";
+		fatalErrorInFunction<<
+		"could not create plane wall from input points "<<endl;
 		fatalExit;
 	}
-}
\ No newline at end of file
+
+}
+
diff --git a/utilities/geometryPhasicFlow/planeWall/planeWall.H b/utilities/geometryPhasicFlow/planeWall/planeWall.H
index 47ef4779..8710835b 100755
--- a/utilities/geometryPhasicFlow/planeWall/planeWall.H
+++ b/utilities/geometryPhasicFlow/planeWall/planeWall.H
@@ -37,6 +37,26 @@ protected:
 
 	bool readPlaneWall(const dictionary& dict);
 
+	bool addWall4(
+		const realx3& p1,
+		const realx3& p2,
+		const realx3& p3,
+		const realx3& p4);
+
+	bool checkFlatness(
+		const realx3& p1,
+		const realx3& p2,
+		const realx3& p3,
+		const realx3& p4);
+
+	bool addPlaneWall(
+		const realx3& p1,
+		const realx3& p2,
+		const realx3& p3,
+		const realx3& p4,
+		int32 numDiv12 = 1,
+		int32 numDiv23 = 1);
+
 public:
 
 	TypeName("planeWall");
@@ -49,7 +69,9 @@ public:
 		const realx3& p1,
 		const realx3& p2,
 		const realx3& p3,
-		const realx3& p4);
+		const realx3& p4,
+		int32 numDiv12 = 1,
+		int32 numDiv23 = 1);
 
 	add_vCtor
 	(
@@ -58,6 +80,7 @@ public:
 		dictionary
 	);
 
+
 };
 
 } // pFlow