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#1 |
New Member
Alex
Join Date: Apr 2020
Posts: 1
Rep Power: 0 ![]() |
Hey
I'm trying to create a fluid domain for my sim with custom volumetric controls to cut down computation time. I have 3 cuboidal volumes of decreasing size, each with increasingly finer meshes inside each other to simulate air flow over a complex blunt body. The meshes themselves are fine and look good however i am having troube with my regions and boundaries. I have looked at the tutorials in the STAR CCM+ manual but cant quite get it since the air does not flow inside the other volumes. I want to have a single stangation inlet and pressure outlet on the outermost volume and have the boundaries of the finer meshes not affect the flow of the air however i can't get this to work. I dont know if it's because i have set up the regions wrong or my parts (and surfaces). Currently i have a region for each volume(part) plus one for my blunt body. If anyone knows how to do this please let me know asap. Thanks Alex |
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#2 |
Member
Yogesh Nalam
Join Date: Sep 2012
Location: München, Germany
Posts: 54
Rep Power: 13 ![]() |
May be you could a picture of your problem. Hope your interfaces are well created between your regions.
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#3 |
Senior Member
Join Date: Nov 2010
Location: USA
Posts: 1,232
Rep Power: 24 ![]() |
You do not need 1 region for each volume. You should only have 1 region for them all. Use a volumetric control and your cuboidal volumes to control the mesh size. It's probably best for you to review the meshing tutorials, as I'm sure this concept is covered.
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Tags |
boundary condition, mesh 3d, star ccm |
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