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Old   September 4, 2017, 07:59
Default SST k-w
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zxc
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hi
what is the meaning of cross-diffusion term ?what does it model?
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Old   September 6, 2017, 02:19
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Ashok Chaudhari
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It act as secondary gradient in non-orthogonal meshes (like poly-hydra). So it gives identical results to that of k-e for k-omega model. SST k-w has to incorporate this diffusive term as it is a combination of k-w and k-e. So not considering this term will give unstable solution in more skewed mesh. Also the near boundary fluxes will be assumed wrong.
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Old   September 6, 2017, 02:44
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Thanks alot
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