Wall Pressure

[Anonymous]

Hello All,

I am calculating pressure on wall. Can anyone tell me what negative sign represent in the attached screen capture. Any help would be greatly appreciated.

Best Regards,

Ashish

[bob.schlosser]

The pressure value is positive is the force from the pressure pushes into the surface and negative is it pulls away from the surface.  The below picture is a sphere in a constant pressure environment.  The two surfaces in the results window are the two halves of the sphere (split through the Y-Z plane)showing how the pressures are the same (exerts force towards the center of the sphere in all directions) and the forces cancelling each other out in all but X.

This gets a little trickier to visualize on complex geometry as the average p