Dear Mr. Robert, 

thank you for your reply.

1) What do you mean by “why would the pathlines enter the section with the blades?” I haven’t even post the pathline above. The streamline above, is it supposed to flow through the domain of rotation Sir? 

2) How can I post the picture in the reply comment. I have tried many times, but only the text is shown in the comment

3) What do you mean by “adjust the fluid zone reference frame”?

We set the rotation domain (above, middle, below) and the shaft by frame motion with any random rotation speed value (in my case I just chose -15 RPM). It was set up in cell zone condition.

We then set the rotor wall with moving wall with speed of 0 m/s relative to the adjacent cell zone in boundary condition

4) Is there any requirement to choose the right speed of rotation domain.


Sorry for many questions,

Thank you