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Old   April 13, 2010, 04:45
Default negative pressure
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CFT
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CFT
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Hi all

Just a simple question. I would like to know the sign convention for the total pressure calculation. I am simulating a building and find that the the total pressure is negative at locations. Does negative mean it is acting away from the wall or towards ?

your help is much appreciated

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Old   April 14, 2010, 03:33
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Łukasz Foluśniak
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Maybe it means just that local pressure is lower at some locations than one in operating condition? Look at the absolute pressure to see the pressure with added operationg conditions.
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Old   April 19, 2010, 10:59
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Claus Schmitzer
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I have a similar problem, negative pressures.

My Operating conditions are set to "0" so how can I get negative pressures ?

When I view the results in Ansys POST I dont have the option to view TOTAL PRESSURE!! how come ?

Thanks for the help,
Archy
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