convergence problem for gas-solid fluidized bed with EE method
 

Hello everyone,

I am simulating a fluidized bed in 3D using Fluent. I have convergence problem with the v-solid parameter. I have tried changing URF, time step, drag laws, meshing but it still diverges after around 20 time steps. I want to ask does anyone know why it is like that or am I missing something here ? Many thanks.

can be due to a gazillion problem, you will have to give more setup/geometry/physics details.

Thank you for your answer. My set up is air blowing solid particles of 1mm diameter in a rectangular fluidized bed (64*8*200mm)