averaging stresses
 

Hi there,

I am running a channel flow using pisoFoam solver and would like to know how I could sample shear stress along the bottom wall versus time. I am new to openFoam and would really appreciate it if you give me ideas. I understand that it should be done via functions in the controlDict by adding libfieldFunctionObjects.so

What function will give me averaged shear stress along bottom wall ? Anybody modified code for that ?

Thank you