Eddy viscosity NaN

Unknown
Unknown
edited January 2023 in Community Q&A

Hi all,

I am getting eddy viscosity NaN when I used fully developed parabolic flow at the inlet of my simulation model. I am using k-e turbulence model. 

turbulence_wall_type                = wall_function
roughness_height                    = 0

image

I have not specified any parameters for turbulence. I would be grateful if you provide some tips for turbulence modelling.

Thanks!

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Answers

  • acupro
    acupro
    Altair Employee
    edited January 2023

    The k-epsilon model (and variants) are solving for kinetic energy and dissipation rate, not eddy-viscosity.  I wouldn't expect to see that as a standard variable in the results.  Are you able to attach your input (.inp) and Log (.Log) files?  Did you build the model in SimLab, or in HyperWorks CFD?  Did you do any manual-editing of the input file?

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