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May 21, 2013, 02:03
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Turbulence Model in axisymmetric nozzle simulation
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#1 |
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New Member
Join Date: Dec 2012
Posts: 11
Rep Power: 6  |
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I am simulating an axisymmetric nozzle. I have an issue with which turbulence model to use. Currently I am using standard K-epsilon and i am not getting any shock wave inside the nozzle. When I switch to SST K omega i get shock wave in the flow. I would like to ask which is the recommended turbulence model for these type of flow |
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May 21, 2013, 05:27
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#2 |
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Senior Member
OJ
Join Date: Apr 2012
Location: United Kindom
Posts: 475
Rep Power: 13 |
By intuition, std k-eps model is diffusive and hence may smear out the sharp gradients responsible for shocks. Have you tried realizable model? It is deemed to be good in modelling jets.
OJ |
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May 22, 2013, 11:50
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#3 |
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New Member
Join Date: Dec 2012
Posts: 11
Rep Power: 6 |
Yes, Just tried realizable.. it also shows a shock wave
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