From e6cdada5d6e336755f0559c6cd233d2b5509f36d Mon Sep 17 00:00:00 2001
From: mattijs <mattijs@hunt.opencfd.co.uk>
Date: Thu, 9 Jul 2009 16:01:36 +0100
Subject: [PATCH] correct extrudeMesh
---
.../mesh/generation/extrudeMesh/extrudeMesh.C | 26 +++++--
.../extrudeModel/linearNormal/linearNormal.C | 9 ++-
.../generation/extrudeMesh/extrudeProperties | 21 ++++--
.../extrudeMesh/extrudedMesh/extrudedMesh.C | 72 ++++++++++++-------
4 files changed, 90 insertions(+), 38 deletions(-)
diff --git a/applications/utilities/mesh/generation/extrudeMesh/extrudeMesh.C b/applications/utilities/mesh/generation/extrudeMesh/extrudeMesh.C
index 69dc36bccf8..7380562664f 100644
--- a/applications/utilities/mesh/generation/extrudeMesh/extrudeMesh.C
+++ b/applications/utilities/mesh/generation/extrudeMesh/extrudeMesh.C
@@ -23,8 +23,9 @@ License
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Description
- Extrude mesh from existing patch (flipped so has inwards pointing
- normals) or from patch read from file.
+ Extrude mesh from existing patch (by default outwards facing normals;
+ optional flips faces)
+ or from patch read from file.
Note: Merges close points so be careful.
Type of extrusion prescribed by run-time selectable model.
@@ -108,14 +109,11 @@ int main(int argc, char *argv[])
const polyPatch& pp = mesh.boundaryMesh()[patchID];
fMesh.reset(new faceMesh(pp.localFaces(), pp.localPoints()));
- fMesh().flip();
{
- fileName surfName(patchName + ".sMesh");
-
- Info<< "Writing (flipped) patch as surfaceMesh to "
+ fileName surfName(runTime.path()/patchName + ".sMesh");
+ Info<< "Writing patch as surfaceMesh to "
<< surfName << nl << endl;
-
OFstream os(surfName);
os << fMesh() << nl;
}
@@ -142,6 +140,20 @@ int main(int argc, char *argv[])
<< "patch or surface." << exit(FatalError);
}
+ Switch flipNormals(dict.lookup("flipNormals"));
+
+ if (flipNormals)
+ {
+ Info<< "Flipping faces." << nl << endl;
+
+ faceList faces(fMesh().size());
+ forAll(faces, i)
+ {
+ faces[i] = fMesh()[i].reverseFace();
+ }
+ fMesh.reset(new faceMesh(faces, fMesh().localPoints()));
+ }
+
Info<< "Extruding patch with :" << nl
<< " points : " << fMesh().points().size() << nl
diff --git a/applications/utilities/mesh/generation/extrudeMesh/extrudeModel/linearNormal/linearNormal.C b/applications/utilities/mesh/generation/extrudeMesh/extrudeModel/linearNormal/linearNormal.C
index 99c02d214fa..c36098ab1e6 100644
--- a/applications/utilities/mesh/generation/extrudeMesh/extrudeModel/linearNormal/linearNormal.C
+++ b/applications/utilities/mesh/generation/extrudeMesh/extrudeModel/linearNormal/linearNormal.C
@@ -47,7 +47,14 @@ linearNormal::linearNormal(const dictionary& dict)
:
extrudeModel(typeName, dict),
thickness_(readScalar(coeffDict_.lookup("thickness")))
-{}
+{
+ if (thickness_ <= 0)
+ {
+ FatalErrorIn("linearNormal(const dictionary&)")
+ << "thickness should be positive : " << thickness_
+ << exit(FatalError);
+ }
+}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
diff --git a/applications/utilities/mesh/generation/extrudeMesh/extrudeProperties b/applications/utilities/mesh/generation/extrudeMesh/extrudeProperties
index 20de7b21524..8bf73c4bf2c 100644
--- a/applications/utilities/mesh/generation/extrudeMesh/extrudeProperties
+++ b/applications/utilities/mesh/generation/extrudeMesh/extrudeProperties
@@ -19,31 +19,40 @@ FoamFile
constructFrom patch; //surface;
// If construct from (flipped) patch
-sourceCase "../cavity";
+sourceCase "$FOAM_RUN/icoFoam/cavity";
sourcePatch movingWall;
+// Flip surface normals before usage.
+flipNormals false;
+
// If construct from surface
surface "movingWall.sMesh";
-// Do front and back need to be merged?
-mergeFaces false;
+// Do front and back need to be merged? Usually only makes sense for 360
+// degree wedges.
+mergeFaces true;
+
//- Linear extrusion in point-normal direction
//extrudeModel linearNormal;
+
//- Wedge extrusion. If nLayers is 1 assumes symmetry around plane.
extrudeModel wedge;
+
//- Extrudes into sphere around (0 0 0)
//extrudeModel linearRadial;
+
+//- Extrudes into sphere with grading according to pressure (atmospherics)
//extrudeModel sigmaRadial;
-nLayers 6;
+nLayers 20;
wedgeCoeffs
{
axisPt (0 0.1 0);
- axis (1 0 0);
- angle 90.0; // For nLayers=1 assume symmetry so angle/2 on each side
+ axis (-1 0 0);
+ angle 360; // For nLayers=1 assume symmetry so angle/2 on each side
}
linearNormalCoeffs
diff --git a/applications/utilities/mesh/generation/extrudeMesh/extrudedMesh/extrudedMesh.C b/applications/utilities/mesh/generation/extrudeMesh/extrudedMesh/extrudedMesh.C
index b258c594451..16bab41094a 100644
--- a/applications/utilities/mesh/generation/extrudeMesh/extrudedMesh/extrudedMesh.C
+++ b/applications/utilities/mesh/generation/extrudeMesh/extrudedMesh/extrudedMesh.C
@@ -109,15 +109,33 @@ Foam::Xfer<Foam::faceList> Foam::extrudedMesh::extrudedFaces
label currentLayerOffset = layer*surfacePoints.size();
label nextLayerOffset = currentLayerOffset + surfacePoints.size();
- // Side faces from layer to layer+1
- for (label i=0; i<nInternalEdges; i++)
+ // Vertical faces from layer to layer+1
+ for (label edgeI=0; edgeI<nInternalEdges; edgeI++)
{
- quad[0] = surfaceEdges[i][1] + currentLayerOffset;
- quad[1] = surfaceEdges[i][0] + currentLayerOffset;
- quad[2] = surfaceEdges[i][0] + nextLayerOffset;
- quad[3] = surfaceEdges[i][1] + nextLayerOffset;
+ const edge& e = surfaceEdges[edgeI];
+ const labelList& edgeFaces = extrudePatch.edgeFaces()[edgeI];
+
+ face& f = eFaces[facei++];
+ f.setSize(4);
- eFaces[facei++] = face(quad).reverseFace();
+ if
+ (
+ (edgeFaces[0] < edgeFaces[1])
+ == sameOrder(surfaceFaces[edgeFaces[0]], e)
+ )
+ {
+ f[0] = e[0] + currentLayerOffset;
+ f[1] = e[1] + currentLayerOffset;
+ f[2] = e[1] + nextLayerOffset;
+ f[3] = e[0] + nextLayerOffset;
+ }
+ else
+ {
+ f[0] = e[1] + currentLayerOffset;
+ f[1] = e[0] + currentLayerOffset;
+ f[2] = e[0] + nextLayerOffset;
+ f[3] = e[1] + nextLayerOffset;
+ }
}
// Faces between layer and layer+1
@@ -128,9 +146,9 @@ Foam::Xfer<Foam::faceList> Foam::extrudedMesh::extrudedFaces
eFaces[facei++] =
face
(
- surfaceFaces[i].reverseFace()
+ surfaceFaces[i] //.reverseFace()
+ nextLayerOffset
- ).reverseFace();
+ );
}
}
}
@@ -142,40 +160,46 @@ Foam::Xfer<Foam::faceList> Foam::extrudedMesh::extrudedFaces
label nextLayerOffset = currentLayerOffset + surfacePoints.size();
// Side faces across layer
- for (label i=nInternalEdges; i<surfaceEdges.size(); i++)
+ for (label edgeI=nInternalEdges; edgeI<surfaceEdges.size(); edgeI++)
{
- const edge& e = surfaceEdges[i];
- quad[0] = e[1] + currentLayerOffset;
- quad[1] = e[0] + currentLayerOffset;
- quad[2] = e[0] + nextLayerOffset;
- quad[3] = e[1] + nextLayerOffset;
+ const edge& e = surfaceEdges[edgeI];
+ const labelList& edgeFaces = extrudePatch.edgeFaces()[edgeI];
- label ownerFace = extrudePatch.edgeFaces()[i][0];
+ face& f = eFaces[facei++];
+ f.setSize(4);
- if (sameOrder(surfaceFaces[ownerFace], e))
+ if (sameOrder(surfaceFaces[edgeFaces[0]], e))
{
- reverse(quad);
+ f[0] = e[0] + currentLayerOffset;
+ f[1] = e[1] + currentLayerOffset;
+ f[2] = e[1] + nextLayerOffset;
+ f[3] = e[0] + nextLayerOffset;
+ }
+ else
+ {
+ f[0] = e[1] + currentLayerOffset;
+ f[1] = e[0] + currentLayerOffset;
+ f[2] = e[0] + nextLayerOffset;
+ f[3] = e[1] + nextLayerOffset;
}
-
- eFaces[facei++] = face(quad);
}
}
- // Top faces
+ // Bottom faces
forAll(surfaceFaces, i)
{
eFaces[facei++] = face(surfaceFaces[i]).reverseFace();
}
- // Bottom faces
+ // Top faces
forAll(surfaceFaces, i)
{
eFaces[facei++] =
face
(
- surfaceFaces[i].reverseFace()
+ surfaceFaces[i]
+ nLayers*surfacePoints.size()
- ).reverseFace();
+ );
}
// return points for transferring
--
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