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-   -   punched zone and porous model (http://www.cfd-online.com/Forums/fluent/48179-punched-zone-porous-model.html)

cristiano May 9, 2008 06:03

punched zone and porous model
 
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


R. May 12, 2008 12:22

Re: punched zone and porous model
 
A porous media condition for a volume needs to have the correct parameters entered:

http://www.fluentusers.com/fluent/do...ug/node276.htm

http://www.fluentusers.com/fluent/do...ug/node277.htm



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