[YatengQ]

Hi everyone,

I'm going to simulation a 3D helix rotating in the fluid domain by using IBM in foam-extend 4.1.

I used movingCylinderInChannelIcoFine case for reference, but in the Z direction the mesh cell is set to be 1 in blockMeshDict. When I set 100 cells in Z direction. The error appears in the log.potentialFoam as follows:


Create mesh for time = 0
153
154
155
156 --> FOAM FATAL ERROR:
157 Error in point ordering: mixed used and unused points at the end of point list.158 Last used point: 0 (-0.02 -0.02 0.005)
159 First unused point: 1 (-0.0198667 -0.02 0.005)
160 and point 1 (-0.0198667 -0.02 0.005) is used by a live face.
161 Face 0 4(1 302 60803 60502) with points 4((-0.0198667 -0.02 0.005) (-0.0198667
162 Done.
163
164 From function void polyMesh::initMesh()
165 in file meshes/polyMesh/polyMeshInitMesh.C at line 166.
166
167 FOAM aborting

I'm not sure if the IBM in foam-extend can simulate the 3D case. I am struggled with this error for several days.

[hjasak]

Looks like a broken mesh; can you try to run something without IBM?

Hrv

[YatengQ]

Hi hjasak,

Thanks for your reply. I run blockMesh, when I set the Z direction mesh to 1, the potentialFoam run correctly, when I set the Z direction mesh >1, the same error appears.

Thanks!