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January 14, 2010, 16:26
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Eddy Viscosity Model Parameters
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#1 |
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Member
Tristan Burton
Join Date: Mar 2009
Posts: 43
Rep Power: 17  |
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).
Thanks, Tristan |
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January 14, 2010, 17:52
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#2 |
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Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,854
Rep Power: 144 |
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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January 14, 2010, 18:46
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#3 |
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Member
Tristan Burton
Join Date: Mar 2009
Posts: 43
Rep Power: 17 |
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? Thanks, Tristan |
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January 16, 2010, 00:08
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#4 |
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Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,854
Rep Power: 144 |
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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January 20, 2010, 14:59
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#5 |
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Member
Tristan Burton
Join Date: Mar 2009
Posts: 43
Rep Power: 17 |
Glenn,
Which tutorial provides details on how to set commands with CCL? Tristan |
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January 20, 2010, 16:25
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Which tutorial provides details on how to set commands with CCL?
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#6 |
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New Member
Join Date: Jan 2010
Posts: 27
Rep Power: 16 |
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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