[Schurl]

Hello,

i would appreciate some advice regarding the simulation of a jet-pump, see attachment.

As a first step i just used a 2D mesh to check if it works in principle - i am quite new in openFoam btw.
I also used different solvers from icoFoam, compressible solvers etc.
As i also want to check supersonic inlets in future and the jet-inlet-velocity is already quite high I actually use sonicFoam.

But, whatever solver I use and whatever angular value I use für the jet-inlet velocity (45° as sketched or in parallel to the walls towards the outlet) i get no solution, where air is sucked in at the inlet.

The air is always leaving the domain at both sides inlet/outlet, of course much higher at the outlet, but unfortunately it does not suck air in.

Has someone already an idea, if i did a principal mistake here?

Thanks in Advance
George