[lihongyang0]

I'm dealing with simulation the cavitation in a Lavel nozzle. I choose the transient, mixture, energy equation and k-e model. Every property of materials is varied with temperature. Each of relaxation factors is about 0.1. The boundary condition is mass flow inlet (13kg/s), pressure outlet (101kPa). The fluent has been calculating for a very long time (110000 steps). But the mass flow on the outlet is about 30~70kg/s. The continuity residual is very high. I have changed many groups of relaxation factors. Now I don't know what can I do to achieve the convergence.