how to improve convergence for fine mesh EE model for fluidized bed?
the convergence is 1e8s! and takes ages (literally) :( to get 0.1s of simulation its a solid bed with freeboard above and gas velocity inflow bc at bottom.
even 1e7,1e6s time step would make a huge difference. any tips?? 
How many phases are there in your simulation? what is the number of transport equation which should being solved and the degree of coupling? hence, you should enter 1e3 for absolute criteria of continuity, and enter 1e5 for time step at first simulation, before this procedure you must simplify your problem.

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hi i am simulating a fluidized bed. i have a problem. there is reversed flow at outlet boundary and the solution does not converge. how can i solve this problem. Thank you in advance 
be sure the gravity is activated

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i activated gravity in general setting should i active gravity in operating condition? 
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yes it must be activated in operating condition panel

Hello All,
I want to do analysis of heat transfer from water flowing through pipes submerged inside concrete. I am modelling in GAMBIT and wish to analyse it on Ansys FLUENT. Can anybody help me out, how to model and simulate? Does any tutorials exist? 
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