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viscous-pressure forces

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Old   June 9, 2003, 14:41
Default viscous-pressure forces
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i have some problems with the forces output from fluent i am testing a sailing boat rudder at different angle of attack at 0 i have viscous forces that look right but very big pressure forces what does pressure forces represents here?

finally i wondering what booundary conditions i should use i have seen many tutorial but none with low speed velocity inlet for inlet but what for outlet (outflow or pressure) and for the sides (wall symetry(only for 0 angle of attack) or velocity inlet too

thank u so much
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