[snappyHexMesh] Only hexaedrical Cells with snappyHexMesh possible?

smoerebroet · November 27, 2014, 11:14

Hi Foamers!

For an in-house combustion solver which is based on splitting hexaedrical cells I need a mesh consisting of only hexaeders. The geometry of the mesh is based on a cfx file- unfortunately containing alot of non-hex cells. I have exported the surfaces to a STL file for further use. Now I would like to use snappyHexMesh to a hexaedrical mesh. Unfortunately, snappyHexMesh produces plenty of tetraedras, polyhedras and prisms.

Therefore, my question is: Is there a way for snappyHexMesh only to produce hexadrical Meshes?

Thanks alot!

smoere

elvis · November 28, 2014, 04:04

polyDualMesh: Creates the dual of a polyMesh, e.g. can be used to generate a “honeycomb” polyhedral mesh from a tetrahedral mesh.

http://www.openfoam.org/features/mesh-manipulation.php

smoerebroet · November 28, 2014, 12:52

Thanks alot for you quick reply, Elvis!

If I am not mistaken, polyDualMesh produces polyhedrical cells. Unfortunately, for our purpose only hexaedrical cells are accaptable. Does anyone else have an idea how to solve this problem?

Thanks

smoere

November 27, 2014, 11:14	Only hexaedrical Cells with snappyHexMesh possible?	#1
smoerebroet New Member Join Date: Nov 2014 Posts: 10 Rep Power: 11	Hi Foamers! For an in-house combustion solver which is based on splitting hexaedrical cells I need a mesh consisting of only hexaeders. The geometry of the mesh is based on a cfx file- unfortunately containing alot of non-hex cells. I have exported the surfaces to a STL file for further use. Now I would like to use snappyHexMesh to a hexaedrical mesh. Unfortunately, snappyHexMesh produces plenty of tetraedras, polyhedras and prisms. Therefore, my question is: Is there a way for snappyHexMesh only to produce hexadrical Meshes? Thanks alot! smoere

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November 28, 2014, 04:04		#2
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	polyDualMesh: Creates the dual of a polyMesh, e.g. can be used to generate a “honeycomb” polyhedral mesh from a tetrahedral mesh. http://www.openfoam.org/features/mesh-manipulation.php

November 28, 2014, 12:52		#3
smoerebroet New Member Join Date: Nov 2014 Posts: 10 Rep Power: 11	Thanks alot for you quick reply, Elvis! If I am not mistaken, polyDualMesh produces polyhedrical cells. Unfortunately, for our purpose only hexaedrical cells are accaptable. Does anyone else have an idea how to solve this problem? Thanks smoere