Wallshear stress simplefoam

rengu

hi everybody

sorry i am wrong of topics

i would like to display wallshearstress for my case with turbulent incompressible fluid with the solver simplefoam

i have had a look on this topics http://www.cfd-online.com/cgi-bin/Op...cus/discus.cgi
but i find it a bit complicated for a new user of OpenFOAM like me

the wall shear stress utility is it good for the simplefoam case?
when i display wallshearstress with paraview, i've got only value at the outlet and zero at all the wall.
what i do wrong?

best regards