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Old   July 22, 2004, 07:40
Default Density out of bound
Prashant Khare
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can some one help me? I am solving a turbomachinary problem with compressible flow..density as a function of pressure and temprature.There is a warning in info file that density is out of bound due to pressure correction at cell.. limiter applied. please i am not able to understand what should i have to do. Thanks in advance for any help
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Old   July 22, 2004, 08:15
Default Re: Density out of bound
Sťbastien ERNANDES
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Everyone has already had this warning....... I'm a novice as StarCD user, but I propose to you : - try to decrease your time step (have a look about 'Courant Number' in the user guide). - try to launch your run in double precision. - verify your molecular properties (Density : ideal f(T,P) / Viscosity : Multicomp. / Specific Heat : Polynomial / Conductivity : Multicomp. ).

Maybe decrease some relaxation factors could be helpful, but I'm not sure...

Good luck.
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Old   July 22, 2004, 08:23
Default Re: Density out of bound
Prashant Khare
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Thank you for your reply but i am solving a steady state flow and i am also using low pressure relaxation factor(0.03).Can any other reasons possible?
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Old   August 1, 2004, 22:35
Default Re: Density out of bound
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You can try transient solving. Good wishes!
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