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Minimum PDF table enthalpy exceeded in xxx cells on zone xxx

    • ozankekul
      Subscriber


       


      Hello My Friends,
      When i simulated combustion , i' m getting this error. I could not solve the problem. if you have any idea to solve the problem, please help me . 



      Minimum PDF table enthalpy exceeded in 440233 cells on zone 3.
      3 1.0000e+00 5.3769e-03 4.8057e-03 4.7646e-03 3.9369e-04 4.6813e-04 4.1865e-02 1.3330e-03 1.6278e-03 2.8901e-02 1.5330e-01 661 497

      Minimum PDF table enthalpy exceeded in 450349 cells on zone 3.
      4 1.0000e+00 2.3754e-02 2.1790e-02 2.1719e-02 2.7465e-04 3.9081e-04 3.8083e-02 7.1038e-04 2.4419e-04 1.0250e-02 1.5734e-01 6:470 496

    • Rob
      Ansys Employee

      Check the range you set for the pdf table: you may need to alter the limits. 

    • ozankekul
      Subscriber

      Hello rwoolhou;


      First of all i would like to thank you for your consideration. I could not find the where i can alter the limits in the PDF table . I'm sharing pictures of my pdf table calculations. But if you tell me how can i change the limits, i will be pleased. 


       







    • Rob
      Ansys Employee

      What is the inlet temperature? Have you plotted temperature contours on the domain?

    • ozankekul
      Subscriber

      Both air inlet temperature and fuel inlet temperature is 300 K . Also temperature of combustor wall is 300 K. Since i have stopped the calculation i don't have the temperature contours of domain. I'm sharing my boundary conditions below. And even if i got this error, i wont stop the calculation and i will share temperature of the domain with you after i had received the solution. 


       







       

    • johnleo
      Subscriber

      Hey! Did you solve that problem? My current problem is kind of same like you and facing the same issue. Please let me know if you went through it.

    • Rob
      Ansys Employee

      If you're fixing the wall temperatures check that's a valid assumption, then work through the other boundary values & model settings. 

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