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June 19, 2001, 20:54 |
Pressure Boundary Condition
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#1 |
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As far as I know, usually SIMPLE-related codes assume a initial pressure value when users give a velocity-inlet and outflow boundary condition. In this case, only pressure drop in system is meaningful.
So, how does FLUENT(including any SIMPLE-related codes) deal with the pressure boundary condition? At first, I thought "calculated flow field is not an absolute value because there is no information of continuity." However, in FLUENT manual, they say the code uses a initial velocity value from Bernoulli's Equation. Someones told me in case of pressure boundary problem, velocity value is one of the possible solutions. Can anyone give me an advice? I would appreciate your detailed explanation. |
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