I'm trying to use flow simulation to determine the shear stress on the internal wall of a flow chamber due to the fluid flow. I set a goal to find average shear stress and I have the graph for that but I'm not sure what the average is for. Is that for the wall or is it in the fluid? I've attached an image of the simulation to give you an idea of where the flow is. I need the shear stress on the bottom of the chamber. Any help with this would be appreciated!