[nennbs]

hello,

i am new to the paraview with openfoam, and now i get the results of openfoam and want to know the force on one surface or the force difference on two surfaces. I have tried many times and also found some ways on the internet, but it does´t work, can you help me to list some steps to computate the force on one surface based on the pressure, possibly using the integrate variables.

thank you millions in advance.