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March 16, 2010, 07:10 |
hex mesh
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#1 |
Senior Member
Join Date: Feb 2010
Posts: 213
Rep Power: 17 |
I have two questions, I think they are two questions connected to each other.
1. My aim is to study the performance of a 'hydro' foil with OpenFOAM (and later on a propeller) and I'm going to create the computational domain with Salome. I'm an absolute beginner, so I proceed step by step. I made a simple model: a parallelepiped cutted by a cylinder; then partitioned by two planes (look at the picture). I'm trying to build a hexahedral mesh but i only obtain the message 'Unexpected geometry. Wrong number of wires' or similar. Can you help me, please? 2. I tried to 'translate' in GUI language the TUI tutorial about the hex mesh for a cylindric domain (on Salome). I almost made the grade (sic!) but I have some problems about 1D discretization. I can't set a different number of segments for each 'dimension', as in the tutorial. Maybe I'm wrong with the 'side group' (are face_a and face_b the bases of the cylinder?). My parameters are [whole object] hypotheses: nb Segments = 1; algo: regular_1D; quadrangle_2D; hexa_3D; [face a, face b] hypotheses: nb Segments 1 = na, nb; algo: regular_1D; quadrangle_2D; [side group] hypotheses: nb Segments =nl; algo: regular_1D; quadrangle_2D; |
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March 19, 2010, 02:21 |
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#2 |
Senior Member
Niels Nielsen
Join Date: Mar 2009
Location: NJ - Denmark
Posts: 555
Rep Power: 27 |
To create a hex mesh in Salome you need each face to consist of 4 edges. The meshing will fail as you see if you have more than 4.
Create you geometry with 4 faces like so, and it should work.
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Linnemann PS. I do not do personal support, so please post in the forums. |
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March 19, 2010, 05:23 |
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#3 |
Senior Member
Join Date: Feb 2010
Posts: 213
Rep Power: 17 |
Thanks for your reply. In the meanwhile, I went on with my exercises and tries (also the meshing tutorials), so I understood the 4 edges requirement.
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February 5, 2013, 18:48 |
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#4 |
New Member
Abbas Rahimi
Join Date: Jan 2013
Posts: 28
Rep Power: 13 |
Hello
I faced to the same problem but I cant figure out how I can push each face to just have 4 edges! Could you please provide me some leads??? Thanks |
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