[DarkRudy]

Hello,

my name is Martin and I'm new to this forum. I've started working with Ansys Workbench a couple of weeks ago und now I'm having some problems with a small project. I hope you can help me with that.
I would like to simulate a flow at the entrance of a pump. I have designed a simplified model of the flow channel with the ansys design-modeler. This one you can see in the picture, which i have attached.

1. The fluid enters at the bottom of the annular chanal.
2. ... then it flows trough the four inclined, small tubes to the 3rd section of the model.
3. The fluid leaves the model at the top area of the cylinder in the middle.
4. I have cut the whole system along the longitudinal axis.

When I open the system to create the mesh, the programm shows me that every body is sweepable. But for the simulation I want to define only "one entry" and "one exit" ( in addition to that the nodes and edges on the contact surfaces should be identical between the individual bodies), so I put the bodies together to one assembly. Now only the small connecting channels are sweepable. Is there a way to get this assembly sweepable? Or is the geometry too complex? How do I deal with this problem?
I have read that the sweep-method is advantageous for such flow simulations, but which alternative can I use, if this method can not be applied to the bodies? The mesh of the net should be very fine to examine the movement of particles or bubbles.

Mhh, I hope, I did not forget anything. Thank your very much for your help.

Kind Regards
Martin