Minimum PDF table enthalpy exceeded in xxx cells on zone xxx

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  • Last Post 06 August 2019
ozankekul posted this 03 August 2019

 

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

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rwoolhou posted this 05 August 2019

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

ozankekul posted this 06 August 2019

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. 

 

rwoolhou posted this 06 August 2019

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

ozankekul posted this 06 August 2019

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. 

 

 

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