Rotating boundsary ?

conan

for example, air flows inside a 3D square channel, say x is flow direction, y,z are cross direction,the case is very simple. The channel sits 0.5m from y-axes. Now, I want to study the effect of rotation. The channel is rotating with y-axes, how to set rotating boundary?

if I have set "FLUID, single moving frame, ratating velocity=500rpm, direction(0,1,0)"

For wall, what is the difference in wall boundary between "staionary" and "movingwall,relative to adjacant cell zone, speed=0" ?

for this case, which option should I choose?

thank you