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November 15, 2012, 12:18 |
Non-physical flow: omega is fixed at inlet
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New Member
Abdulhaq
Join Date: Oct 2012
Posts: 27
Rep Power: 14 |
Hi
This is driving me crazy! I'm simulating a flow past a transonic aerofoil (RAE 2822), I wrote a small script to generate a blockMeshDict which would then generate a C-Mesh around the aerofoil. Everything except omega at the inlet is fine. Here's my part of my entry for omega: Code:
internalField uniform 242315; boundaryField { INLET { type fixedValue; value $internalField; } Something even more strange: I have a c-mesh for this same aerofoil converted from Fluent (originally from Numeca), and when I run the simulation using this mesh with the exact same conditions, omega is changing at the inlet, i.e. it is being solved!. Here's a screenshot: This seems more 'physical'. Am I correct to say the 1st screenshot doesn't look correct at all. If yes, what is wrong with the mesh/boundaries. Can someone help me? I have also uploaded the two cases, the first one is using the mesh I generated, (blockMeshDict) is included as well. The second is using the converted Fluent mesh. *I originally had the two meshes to have the same boundaries but then I decided to create a 'topAndBottom' boundary patch as well in the hope that it will change the behaviour of omega at the inlet. Case1(block Mesh): http://www.mediafire.com/?bfemuyx2qofh4qh Case2(fluent mesh): http://www.mediafire.com/?zvz2n15izzb0i1m |
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omega, rhocentralfoam |
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