Temperature dependent SURFACE TENSION TEMPERATURE COEFFICIENT
Dear Fluent user,
i am solving TIG welding simulation using fluent. i need to assign temperature dependent surface tension temperature coefficient for Marangoni convection. but there is a provision to use constant value. how can i use temperature dependent data ? kindly help me out in this boundary condition. |
Surface Tension Coefficient UDF
Quote:
You need a UDF to define surface tension temperature coefficient. /************************************************** ************* Surface Tension Coefficient UDF for the VOF Multiphase Model ************************************************** *************/ #include "udf.h" DEFINE_PROPERTY(sfc, c, t) { real T = C_T(c,t); return 1.23 - 0.004*T + 5.0e-6*T*T; } |
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