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How to access the subgrid-scale (SGS) stresses with LES (FLUENT) ? |
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May 12, 2011, 13:13 |
How to access the subgrid-scale (SGS) stresses with LES (FLUENT) ?
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#1 |
New Member
Join Date: Nov 2009
Posts: 10
Rep Power: 17 |
Dear all,
I am running a LES computation with Fluent 6.3. I am using the dynamic Smagorinsky SGS model. I would like to access the SGS stresses, but apparently they are not directly accessible in Fluent, for plotting or exporting. When data sampling is enable, only the resolved Reynolds stresses are available. Do I have to use the definition and a custom field function to compute them? In this case I need to access the SGS kinetic energy, don't I? Is there any other way? More precisely, I would like to have the time-average SGS stresses. I suppose that this can be done via an UDF but how to access these data? Any help, comment or suggestion will be appreciated. Thank you. M. |
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Tags |
fluent, large eddy simulation, subgrid scale stresses, udf |
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