Please help me to solve Film boiling simulation problem !

    • Alexander19

      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.


    • Karthik R


      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?



    • Alexander19

      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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