divergence-detected-amg-solver-temperatur
hi every one,
i tried to put an UDF for thermal conductivity (conductivity= viscosity / prandt number). the viscosity is calculated by the sutherland law, and the prandt number egale to 0.71, so the relation is : conductivity=viscosity(by sutherland)/0.71 i load my UDF , i corrected the errors, i choose KTC_sutherland for conductivity and sutheland for viscosity. but when i start the calculation i get an error: divergence-detected-amg-solver-temperatur here is my UDF: #include "udf.h" DEFINE_PROPERTY(KTC_sutherland,c,t) { real KTC; real MU_L; #define pr 0.71 KTC= MU_L/pr ; return KTC; } for the configuration, i have a square cavity failled by air with vertical differencial heated walls, the horizontal ones are adiabatics . for mesh i use the streched one near the walls . |
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