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Old   November 28, 2002, 02:49
Default simulating a fluidized bed
  #1
yee wan
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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
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Old   November 28, 2002, 06:27
Default Re: simulating a fluidized bed
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MIssNancy
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Yes it can. In the manual there is an example. Start with that one.

Nancy
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Old   November 28, 2002, 22:12
Default Re: simulating a fluidized bed
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yee wan
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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

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Old   November 29, 2002, 03:07
Default Re: simulating a fluidized bed
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MissNancy
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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
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Old   November 30, 2002, 15:49
Default Re: simulating a fluidized bed
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ravi varma
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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.
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Old   December 2, 2002, 08:51
Default Re: simulating a fluidized bed
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joy123
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You can use porous jump b.C. or try with "source term" option. Hope it works.
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Old   December 2, 2002, 23:16
Default Re: simulating a fluidized bed
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yee wan
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But I am modeling a 2D bed.... I dont think I can choose porous jump as the B.C.....
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