Please help me to solve Film boiling simulation problem !

- June 15, 2020 at 7:49 am
  
  Alexander19
  Subscriber
  
  Hello everyone,
  I am trying to simulate Film boiling of water at atmospheric condition. I followed the tutorial "Horizontal Film Boiling". There are some modifications of fluid properties as shown in table. But the result obtained is not good. I don't know why.
  Thanks for your attention. I’m looking forward to your reply.
- June 16, 2020 at 1:42 am
  
  Karthik R
  Administrator
  
  Hello,
  
  I would not use the thermal conductivity of 0 in my simulation. Please enter a finite small value instead.
  
  That being said, this might not be the reason why you are not able to run the simulation. To me, a superheat of 300 K seems too significant. Are these physical values? Are you obtaining these conditions from some experiment?
  
  Also, are you using a UDF for heat and mass transfer?
  
  Thanks.
  
  Karthik
- June 16, 2020 at 4:15 am
  
  Alexander19
  Subscriber
  
  Thank you for your comment. Temperature of water is constant (saturated temperature) so thermal conductivity can be assumed zero. The excess temperature is high enough to occur film boiling. I used UDF for heat and mass transfer.

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