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How to get the DISSIPATION in volume output

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Old   October 19, 2023, 03:04
Default How to get the DISSIPATION in volume output
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Zhang
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Dear all,

I want to get the TKE and DISSIPATION in volume output to estimate my mesh if works well in LES. I first use the SA model, but it doesn't output TKE and DISSIPATION directly, so I change the SST model, and run SU2_CFD -d <>.cfg to ensure the volume output obtain them.

BUT it only has TKE only, I didn't see the dissipation in it. So how can I get the dissipation distribution in my flow field?

Any help is necessary for me! Thanks for your patience.

Yours,
Zhang
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Old   October 20, 2023, 04:39
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The turbulence dissipation is called "Omega" in the k-omega model. And yes, the SA model cannot give you the tke and dissipation because they are not solved for. Instead, you have the turbulent viscosity Nu_t.
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Old   October 20, 2023, 04:42
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Thank you so much. You've been very helpfu
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