CFD Online Discussion Forums

CFD Online Discussion Forums (
-   FLUENT (
-   -   negative pressure (

CFT April 13, 2010 04:45

negative pressure
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


folek April 14, 2010 03:33

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.

archymedes April 19, 2010 10:59

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,

All times are GMT -4. The time now is 10:11.