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Error in NITF

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I am trying to simulate the fluid flow in a manifold system and am getting the below error. The coupled interfaces are Turbulent Flow(k-epsilon) and Heat transfer in Fluids. RANS model has been used for Compressible flow and the default Kays-Crawford model is used for predicting the Turbulent Prandtl number. From the error i understand that comp1.nitf1.Prt = 0. So, what are the changes that can be incorporated into the model?

Heat transfer Division by zero. - Function: / Failed to evaluate variable. - Variable: comp1.ht.kappaTxx - Defined as: (comp1.ht.C_effcomp1.spf.nuT)/comp1.nitf1.Prt Failed to evaluate variable. - Variable: comp1.ht.k_effxx - Defined as: comp1.ht.kxx+comp1.ht.kappaTxx Failed to evaluate variable. - Variable: comp1.ht.dfluxx - Defined as: comp1.Tx(-comp1.ht.k_effxx) Failed to evaluate expression. - Expression: dvol_spatial(comp1.ht.dfluxxcomp1.ht.d) Failed to evaluate Jacobian of expression. - Expression: ((comp1.ht.dfluxxtest(comp1.Tx)+comp1.ht.dfluxytest(comp1.Ty))comp1.ht.d)(dvol_spatial)

Any logical inputs will be appreciated. Thanks.

Regards, Karthik


0 Replies Last Post 25 janv. 2020, 07:50 UTC−5
COMSOL Moderator

Hello K. Viswanathan

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