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Failed To Evaluate Variables And Jacobian Variables

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Hello everyone, I am trying to solve a phase change model in 5.3a version of a shell and tube heat exchanger and getting the problem, i have tried a lot but unable to find the solution can anyone help me on this issue. Please find attachment for the model file.

Undefined variable. - Variable: comp1.w - Geometry: geom1 - Domain: 2 Failed to evaluate Jacobian of expression. - Expression: dvol_spatial(comp1.ht.d((comp1.ht.Cp(-comp1.ht.rho))(((comp1.Txcomp1.ht.ux)+(comp1.Tycomp1.ht.uy))+(comp1.Tzcomp1.ht.uz)))) Failed to evaluate Jacobian of expression. - Expression: (-comp1.ht.rhocomp1.ht.Cp(comp1.ht.uxcomp1.Tx+comp1.ht.uycomp1.Ty+comp1.ht.uzcomp1.Tz)test(comp1.T)comp1.ht.d)*(dvol_spatial)



0 Replies Last Post Jun 27, 2019, 1:03 a.m. EDT
COMSOL Moderator

Hello Jnana Bhaskar Rao

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