I was trying to look at edmrate and kinrate in CFX-Post. How can I view these rates separately so that I can see where the combustion is kinetically controlled?
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Separate post-processing of reaction rates is often useful in debugging combustion problems in which there are temperature over shoots, or in deciding how to tune combustion models. The best way to post process the reaction rates separately is to set this up permanently in the CFX-5 installation. To do this, edit the VARIABLES file in C:CFXCFX-5.7.1etc, or the etc directory in the CFX-5 installation. The VARIABLES file determines what solver variables are written to the results file. EDM and kinetic rates are calculated by the solver, but only the bulk reaction rate is written to the results file. To get the rates into the results file as separate variables, turn on the variables "edmrate" and "kinrate" in the rules file by setting "Output to Jobfile" and "Output to Postprocessor" to "Yes" (see below). VARIABLE: edmrate Option = Definition MMS Name = EDMRATE Long Name = Eddy Dissipation Reaction Rate Tensor Type = SCALAR Quantity = Molar Concentration Rate Status = D User Level = 3 Output to Jobfile = Yes Output to Postprocessor = Yes CEL Root = /FLOW/PHYSICS/{Zone}/{Fluid} Physical Availability = MASFRC, COMBUSTION, EDM Variable Scope = REACTION Variable Class = COMB END VARIABLE: kinrate Option = DefinitionMMS Name = KINRATE Long Name = Chemical Reaction Rate Tensor Type = SCALAR Quantity = Molar Concentration Rate Status = D User Level = 3 Output to Jobfile = Yes Output to Postprocessor = Yes CEL Root = /FLOW/PHYSICS/{Zone}/{Fluid} Physical Availability = MASFRC, COMBUSTION, FRC Variable Scope = REACTION Variable Class = COMB END |
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