I can't figure out how to set the turbulent Prandtl number for energy. I know that in CFX-5.6 one could do this
by setting an expert parameter, but this does not seem to work in ANSYS CFX 10 or CFX-5.7.
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The expert parameter for setting the turbulent Prandtl number was discontinued after CFX-5.6. In later releases, this is considered to be a beta feature and you must edit the CCL file directly: 1. Use cfx5cmds to extract the CCL content of the definition file to a text file 2. Edit the CCL file content under the HEAT TRANSFER MODEL: object to add a TURBULENT FLUX CLOSURE: object as shown below: HEAT TRANSFER MODEL: Option = Thermal Energy TURBULENT FLUX CLOSURE: Option = Eddy Diffusivity Turbulent Prandtl Number = 1.0 END END 3. Use cfx5cmds to write the modified CCl file back to the definition or results file and then run the model. |
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