Calculation of gear pump
 

Hi, all. I have some problems with calculation of gear pump in CFX. I use immersed solids for modeling gears of pump. Motion of them is OK. But if I look for results in cfd-post, streamlines look like as gears are absent. Is it OK?

My boundary condition:

inlet - static pressure;
outlet - aver. st. pressure;
initial conditions - all cart. components - 0.

Of course, p(outlet)>p(inlet), but in results the motion of fluid is directed from an outlet to an inlet. What's the problem?

Have you done the tutorial example of a gear pump using immersed solids? That shows you how to set it up.