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-   -   inlet mass flow rate BC (http://www.cfd-online.com/Forums/fluent/47236-inlet-mass-flow-rate-bc.html)

manu February 5, 2008 14:24

inlet mass flow rate BC
 
I'm simulating a 3d- compressor with constant mass flow rate - inlet boundary condition and constant static pressure - outlet boundary condition. When the solution have converged I find a positive static inlet pressure (on the inlet face). Normally it should be negative, as there is gas with atmospheric condition (== operating pressure) flowing through the inlet face. And the total inlet pressure should be zero (compensated with the positive dynamic pressure) Can somebody explain me where I make (or Fluent???!!!) a mistake?


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