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June 6, 2013, 13:03 |
Velocity dependent pressure BC
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#1 |
Member
Hannes
Join Date: Apr 2009
Location: Schleswig, Germany
Posts: 38
Rep Power: 17 |
Hi Foamers,
For a case where the incoming flow is determined by a pressure jump at the inlet I need a boundary condition fulfilling following criteria: - calculation of velocity by pressure difference -> pressureInletVelocity - calculation of the pressure difference depending on velocity to mimic a tube system ahead of the domain in the "real world". -> Basically a variation on totalPressure. For various reasons I don't want to model the tube system ... I wonder whether I'm missing something and such a BC is already available or if I have to code it myself. If so, does anyone have a suggestion on what would be more stable: include the tube resistance = f(u^2) in totalPressure or in pressureInletVelocity? Thank You and Best Regards, Hannes
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