# simulating a fluidized bed

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 November 28, 2002, 02:49 simulating a fluidized bed #1 yee wan Guest   Posts: n/a Hi every one. Can FLUENT v.6 simulate a 2d gas-solid fluidized bed system?? Now my problem is that cannot define the bottom plate, gas inlet boundary condition. Which boundary type should i choose?? thank you

 November 28, 2002, 06:27 Re: simulating a fluidized bed #2 MIssNancy Guest   Posts: n/a Yes it can. In the manual there is an example. Start with that one. Nancy

 November 28, 2002, 22:12 Re: simulating a fluidized bed #3 yee wan Guest   Posts: n/a i think my question is not very clear. now the problem i donnt my domain is correct or not. i use gambit to bluid the 2d model, which has 2faces, top and bottom. for the bottom edge, i mean the edge which will represent the plate for flow inlet, what boundary condition should i use, wall? pressure inlet?? thank you

 November 29, 2002, 03:07 Re: simulating a fluidized bed #4 MissNancy Guest   Posts: n/a Hope I understand your prob correctly. You want to model a fluidised bed where the gas/air is injected from the bottom? In that case, you can use inlet BC (you should consider multiple inlet, I mean several injection points) Nancy

 November 30, 2002, 15:49 Re: simulating a fluidized bed #5 ravi varma Guest   Posts: n/a i don not believe you have to define several injection points. if you have one boundary you define just one boundary condition. defining several injection point for the same boundary might confuse the solver and you may not see convergence. alternatively, you could define a velocity profile with UDFs.

 December 2, 2002, 08:51 Re: simulating a fluidized bed #6 joy123 Guest   Posts: n/a You can use porous jump b.C. or try with "source term" option. Hope it works.

 December 2, 2002, 23:16 Re: simulating a fluidized bed #7 yee wan Guest   Posts: n/a But I am modeling a 2D bed.... I dont think I can choose porous jump as the B.C.....

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