I want to evaluate pressure and viscous forces separately in CFD-Post. How do I do this?
|
The 'force' command in the Function Calculator calculates a combined force (pressure+viscous) on surfaces.
To calculate forces due to pressure and viscous stresses separately, the following form can be used: For pressure forces in the x-direction on Â'regionÂ': areaInt_x(p)@region For viscous forces in the x-direction on Â'regionÂ': areaInt(Wall Shear X)@region Note that the relative pressure, p, was used in the above expressions which is consistent with the default behaviour of the Â'forceÂ' command. If the reference pressure is non-zero, and the force based on the absolute pressure is desired, use pabs instead of p in the pressure force expression (e.g. areaInt_x(pabs)@region). |
||
|