I am simulating a fluidized bed reactor using Eulerian multiphase model, I set two phases in my simulation: solid and liquid. I did patch the initial volume fraction before running. I am using laminar flow in transient simulation. For the boundary condition i set inlet as velocity inlet and outlet as pressure outlet with gauge pressure = 0pa. When i try to calculate, the solution is unable to converge. I tried reducing the under-relaxation factors to 0.2 ,reduce the time step and solve using the first order solution method but it still diverge. Are there other ways to make it converge?
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