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November 24, 2011, 09:53 |
Fluidized Bed
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#1 |
New Member
Rajesh Choudhary
Join Date: Nov 2011
Location: Alwar, Rajasthan, India
Posts: 7
Rep Power: 14 |
I am doing the modelling of fluidized bed for steady state using eulerian model for wood particle as packed bed with packing limit 0.6 but whenever i am going for solving the equation for volume fraction but getting the one error statement :
Error: divergence detected in AMG solver: vof-1 Error Object: () Please tell me what i can do for it..... thanks |
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November 26, 2011, 04:14 |
Re
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#2 |
Senior Member
shoeb khan
Join Date: Nov 2011
Posts: 179
Rep Power: 14 |
Did you use the kinetic theory model in your simulations??
Select viscosity of the secondary phase as kinetic theory and then try to run the simulations.. SHK |
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November 26, 2011, 09:55 |
Fluidized bed modeling
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#3 |
New Member
Rajesh Choudhary
Join Date: Nov 2011
Location: Alwar, Rajasthan, India
Posts: 7
Rep Power: 14 |
First of all, thanks for reply.....
Ya i used that kinetic theory model and i sort out that problem..thanks again....but i don't know how to initialized the value for velocity for different phases and void fraction to get convergence solution for steady state..? |
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November 27, 2011, 11:59 |
Re
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#4 |
Senior Member
shoeb khan
Join Date: Nov 2011
Posts: 179
Rep Power: 14 |
Hi
First you cannot solve the problem in steady state.The problem has to solved in multiphase eulerian model in transient behavior.There are several papers in the literature from where you can get the inlet parameters of the case. You have to adapt the zone of fluid and then patch it for your fluid region with certain volume fraction. Hope that will help you SHK |
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