HOW TO WRITE UDF FOR THERMAL CONDUCTIVITY OF FLUIDS

- August 31, 2018 at 5:47 am
  
  Devank12
  Subscriber
  
  I want to define thermal conductivity of water that varies with temperature I have written a UDF based on the following polynomial equation. I donot know it is right .If any correction plz inform me. Thanks
  
  #include "udf.h"
  
  DEFINE_PROPERTY(knew,c,t)
  
  {
  
  real ktc;
  
  real T = C_T(c,t);
  
  ktc = – 0.5752 +(6.397*exp(– 3.0) * T ) – ( 8.151*exp(– 6.0) *pow(T,2.)) ;
  
  C_UDMI(c,t,0) = ktc;
  
  return ktc;
  
  }
- August 31, 2018 at 10:10 am
  
  DrAmine
  Ansys Employee
  
  Same as the other threads: you don't need an UDF as you can use the polynomial option there.

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