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Velocity outflow vs Pressure Outflow

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Old   January 5, 2006, 03:51
Default Velocity outflow vs Pressure Outflow
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Dear users ;

Please clarify me whats main difference beteween Veloity outflow boundary conditions VS Pressure outflow Boundary Conditions

Why we are taking mass flux in Velocity outflow ??

Please tell when to use exaclty these two boundary conditions??

Thanking you ramesh

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Old   January 9, 2006, 01:12
Default Re: Velocity outflow vs Pressure Outflow
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HI, It is very clear from the name itself that the pressure outflow allows you specificatiom of pressure while Velocity outflow allows you the specification of velocity. THe mass flow switch on indicates that the mass flux at the inlet boundary is constant and velocity is allowed to change if density changes. The Velocity constant swich maintains the constant velocity and mass flux changes as density chagnes
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