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How I can evaluate the Heat release (W/m3) of the reactions if I’m using the FGM model in Fluent? Is there a way to access the FGM heat release from UDF?

- January 25, 2023 at 7:17 am
  
  FAQ
  Participant
  
  In R19.2 and forward the heat release rate is stored directly in the FGM tables for post-processing. This value (in J/m3/s) is the summation over species for (H_f_j/Mw_j)*(w_dot_j) where j is the species index and w_dot_j is the volumetric rate for species j. (That is similar to the energy equation source term due to reaction). You can also now access this value for post-processing from a DEFINE_PDF_TABLE UDF. Do do it, just use this call: real HRR = Get_Pdf_HeatReleaserate (c, t);

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