Question to liftDrag

hoochie

Hello all,

im trying to calculate some cases from fluent, to evaluate the results of OpenFOAM. The cases consist of a wing (2D) in a flow and Im interested in the forces in X and Y-direction. So I changed the liftDrag-tool to print the vectors from the pressure-, visous- and turbulenceforce. With this vectors, I hoped to get more or less the same results than from fluent. In fact they are not, the forces are much to low.
I filled in the right value of nue, because liftDrag is working with it. So, does anybody have a clue where could be the problem?

And a second question, I raed in the forum, that calculating incompressible means to compute p* but not p. To get the real pressure I have to multiply p* with rho.
But if p* isnt p, is the function

pressureForce = sum
(
p.boundaryField()[patchLabel]
*mesh.Sf().boundaryField()[patchLabel]
);

in liftDrag correct? Because p in this case is p* as far as I can see.

thx in advance