plot of wall shear stress and turbulent properties (average of u'u', v'v', u'v' )- OF
 

i am beginner in OpenFoam CFD simulation and learning from youtube tutorial, i learned case setup and simple post processing in Paraview.

i used k-e and kw model but i cant able to plot fluctuating (prime) quantities, in paraview there is only mean pressure and velocity are available.

how can i create some variable that is not default in solver, i want to plot
1. wall shear stress or skin friction coefficient, coefficient of pressure, drag and lift coefficient.
2. turbulent properties (average of u'u', v'v', u'v' )

please help me, i cant able to plot all these result.

Thank you
Saurav kumar