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Please give me some hints for a high Mach number turbulent modeling
Posted 14 mag 2012, 14:59 GMT-4 Fluid & Heat, Computational Fluid Dynamics (CFD), Studies & Solvers Version 4.2a 0 Replies
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I am trying to model a fluid flow in a nozzle.
As there were too many error with the initial conditions, (e.g. Attempt to evaluate real square root of negative number...)
I referred some initial values from a tutorial 'Sajben diffuser'.
After input the values, that error was solved, but still there is a problem with
''Undefined value found.
Detail: Undefined value found in the equation residual vector.
There are 57 degrees of freedom giving NaN/Inf in the vector for the variable mod1.nutilde''
When I checked the log file, a variable 'mod1.nutilde' seems to be diverging, and it makes the error.
How can I fix this error?
Thanks a lot in advance.
Regards
MJ
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Hello MJ Kang
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