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Eddy Viscosity Model Parameters

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Old   January 14, 2010, 15:26
Default Eddy Viscosity Model Parameters
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Tristan Burton
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Does anyone know where the turbulent Prandtl number, and turbulent Schmidt number for additional variables are set inside CFX-Pre? I'm using the k-epsilon model along with the total energy equation and a transport equation for an additional variable. I can find where all the model constants are defined for the k and epsilon equations, but not for the total energy equation (turbulent Prandtl number) and the additional variable transport equation (turbulent Schmidt number).

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Tristan
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Old   January 14, 2010, 16:52
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Glenn Horrocks
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If you can't find a keyword in CFX-Pre then look in the RULES file. It has the complete listing of the available CCL commands. It is in <CFX_ROOT>/etc/RULES
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Old   January 14, 2010, 17:46
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Tristan Burton
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Glenn,

Does that mean that those parameters (turbulent Prandtl number and turbulent Schmidt number) are "hardwired" into the code? If I wanted to I could change the k-epsilon model coefficients in CFX-Pre, but I can't do the same for the total energy equation and additional variable equation?

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Old   January 15, 2010, 23:08
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Glenn Horrocks
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CFX-Pre does not access the full CCL. Some commands need to be set using CCL. The RULES file is the complete syntax. Don't edit the RULES file or you will simply break CFX.
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Old   January 20, 2010, 13:59
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Tristan Burton
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Glenn,

Which tutorial provides details on how to set commands with CCL?

Tristan
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Old   January 20, 2010, 15:25
Default Which tutorial provides details on how to set commands with CCL?
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Hi
I think that for any problem it is diffrent. For example in free surface problems you can see the tutorial 7.
God luck
Tajnesaie
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