Moments for walls in flow between 2 disks

Felipe

Hi everybody,

I do not understand very well how can I get the total moment for a wall in a flow between 2 disks. I must specified a moment center in a x,y coordinates so, if I have the rotational speed vector aligned with the x axis, then, I enter: for momentum center y=0 and any value of x, and returns a torque of 0 n-m, and if I do the contrary, x=0 and any y, I would obtain a value for moments outside my rotation line (shaft)

I´d appreciatte your suggestions

Felipe Rey