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punched zone and porous model

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Old   May 9, 2008, 06:03
Default punched zone and porous model
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I'm modeling a gas turbine combustor. The punched zones on the liner are modeled with porous model (alfa=0; calibration with CR). I don't understand the difference between superficial velocity and physical velocity. In my case: 1)In each zone I imposed the porosity (Gamma)parameters. 2)Then I changed CR with the superficial velocity option to calibrate the model (based on fluxes distribution)... 3)The run with physical velocity in postprocessor shows the different fluxes distribution and if I modify CR nothing changes.

Help me. I'm going crazy

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Old   May 12, 2008, 12:22
Default Re: punched zone and porous model
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A porous media condition for a volume needs to have the correct parameters entered:

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