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FREE STUDENT SOFTWARE

UDF for convection is not working

- June 16, 2025 at 9:49 am
  
  iitdhn.a
  Subscriber
  
  hi, I want to apply convention boundary condion on a wall as a functin of varing ambient temperature. I have written a udf for free stream temperature (ambient) as funciton of time but it has unexpected effect in the convection boundary condition at the wall. when I am changing the temperature value in the udf it has no effect on solution. but for expression and as constant free stream temperature it works fine.
- June 16, 2025 at 10:37 am
  
  Rob
  Forum Moderator
  
  I assume you've got DEFINE_PROFILE returning a temperature in Kelvin and hooked into the highlighted box below?

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