Polyhedral mesh generation

sanathkeshav · April 4, 2018, 06:32

Hello guys!!

I am trying to generate some polyhedral mesh for an in-house code. The polyhedral mesh that is generated by ANSA does not seem to provide polyhedral cells with planar faces. There are small amounts of curves, twists, distortions etc on the cell faces. I need cells which have perfectly planar faces for the application and for the code. Is there any way to do this?

Thanks in advance. Looking forward to any tips and suggestions and will be highly appreciated.

Warmest regards,
Sanath

acurley31 · September 3, 2018, 10:39

Although it's not elegant, I suppose you could find faces that are warped using a check (I think this would be anything greater than 0). Then you can use the Mesh > Volumes > SplitToTetra feature to split any polyhedra that have warped faces to tetra.

This will likely make your model much bigger than you want, but it's the only way I think you might be able to ensure that there aren't any non-planar faces.

Alex

April 4, 2018, 06:32	Polyhedral mesh generation	#1
sanathkeshav New Member Sanath Keshav Join Date: Jun 2015 Location: Goa, India Posts: 2 Rep Power: 0	Hello guys!! I am trying to generate some polyhedral mesh for an in-house code. The polyhedral mesh that is generated by ANSA does not seem to provide polyhedral cells with planar faces. There are small amounts of curves, twists, distortions etc on the cell faces. I need cells which have perfectly planar faces for the application and for the code. Is there any way to do this? Thanks in advance. Looking forward to any tips and suggestions and will be highly appreciated. Warmest regards, Sanath

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
how to set periodic boundary conditions	Ganesh	FLUENT	15	November 18, 2020 07:09
Mesh motion with Translation & Rotation	Doginal	CFX	2	January 12, 2014 07:21
[ICEM] Need urgent help for hybrid mesh generation	Pursuor	ANSYS Meshing & Geometry	1	August 29, 2012 17:04
Convergence moving mesh	lr103476	OpenFOAM Running, Solving & CFD	30	November 19, 2007 15:09
General questions on grid-based computing	Adrin Gharakhani	Main CFD Forum	21	June 5, 2000 14:47

September 3, 2018, 10:39		#2
acurley31 New Member Join Date: Sep 2016 Posts: 9 Rep Power: 10	Although it's not elegant, I suppose you could find faces that are warped using a check (I think this would be anything greater than 0). Then you can use the Mesh > Volumes > SplitToTetra feature to split any polyhedra that have warped faces to tetra. This will likely make your model much bigger than you want, but it's the only way I think you might be able to ensure that there aren't any non-planar faces. Alex