Ansys Fluent: Sliding Mesh Method: 2D Centrifugal Pump 

You´re welcome

hello can i contact with you plz

I think there is. But I think you would have to use a dynamic mesh to approach that problem, given that you need to find the rpm of the pump instead of using it as input.

Given the rpm of the impeller and you want to determine the outlet mass flow rate out of the pump, you should set pressure-inlet and pressure-outlet BCs. Set gauge pressures as 0.

To be honest I'm not sure it would work. At least the way I'd do it is to create two rotating domains, one for each gear, but then those domains would have to overlap at some point of the simulation, and I'm not sure you can fix that issue in Ansys.

Maybe it can be done, but i don't know how lol

@@fluentsetup1232 you are right. it cant be done

It can't be done at least with that model, it is needed to define a UDF for the wall geometry to move and allow the dynamic mesh to remesh every iteration, it's a lengthy process to simulate

Also it is called a false gear pump as the domain must be maintained as a single one in order to be able to be solved by fluent positive displacement machines actually interrupt the connection between fluid domains. The false gear pump always maintains a small space between walls so a continuous mesh never gets interrupted. I don't know how precise (or even useful) this simulations would be.