[MarvusII]

Hi everyone,

I am trying to develop a fan curve for a 2d centrifugal blower. I am using the SST k-omega model with default parameters. I am having trouble with convergence under certain parameters. To get the full curve I set pressure outlet and inlet to 0 pa, to get the free flow conditions. However, when trying to simulate with zero (or small) mass outflow, to get the max pressure devolved, the simulation doesn't converge at all. I get reverse flow at the inlet and outlet. How do I fix these problems to get a full fan curve.

I appreciate all the help