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[ozankekul]

 

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]

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

[ozankekul]

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]

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

[ozankekul]

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]

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]

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