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Calculate diffusion term from UDS transport equation |
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#1 |
New Member
Anne-Sophie
Join Date: Feb 2020
Location: Belgium
Posts: 17
Rep Power: 6 ![]() |
Hi,
I am looking for a way to plot the diffusion term from the UDS transport equation that is internally calculated by Fluent. Is there an easy way to do this? Since this term contains a second order gradient, I don't know how to implement it in a UDF without defining 2 extra user defined scalers. Thanks in advance for the advice! Kind regards, Anne-Sophie |
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#2 |
Senior Member
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You can use SECONDARY_GRADIENT_SOURCE function to retrieve the required data. It does not return the diffusion term but the required terms for the calculation of diffusion term. It is very similar to BOUNDARY_SECONDARY_GRADIENT_SOURCE and its usage is given in UDF manual in P1 Radiation model implementation example.
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Regards, Vinerm PM to be used if and only if you do not want something to be shared publicly. PM is considered to be of the least priority. |
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#3 |
New Member
Anne-Sophie
Join Date: Feb 2020
Location: Belgium
Posts: 17
Rep Power: 6 ![]() |
Hi,
Thank you for your advice, Vinerm! I will try what you suggested. Kind regards, Anne-Sophie |
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diffusion |
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