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how to define boundary condition for 3d computer

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Old   October 16, 2008, 11:31
Default how to define boundary condition for 3d computer
  #1
juju
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hello there, can anyone help me to define the correct boundary condition for 3d desktop computeer.

when i run this model in fluent it show the temperature around the casing not inside the component.

please help me....

regards juju
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Old   October 17, 2008, 11:02
Default Re: how to define boundary condition for 3d comput
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doki
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well what type of geometry you have chosen? if inside the geometry have not been meshed, so there would be no result for that region to show! if the geometry is meshed, usually it is defined as a separate zone and the display is done as normal.
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Old   October 17, 2008, 11:07
Default Re: how to define boundary condition for 3d comput
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juju
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thank doki, now i working to finish my degree research about heat transfer simulation in a desktop computer with heat generating components. in gambit i define boundary condition

inlet-velocity inlet

hdd-wall

fdd-wall

cdr-wall

cpu-wall

mboard-wall

outlet-pressure outlet ok..then i transfer into fluent n run i didn't get exact result.the simulation give no aiirflow and not reasonable.

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Old   October 18, 2008, 03:32
Default Re: how to define boundary condition for 3d comput
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doki
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well maybe there is not enough momentum to generate a flow, or the solution have not progressed well. also the solution is sensible to large mesh sizes.
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Old   October 19, 2008, 11:23
Default Re: how to define boundary condition for 3d comput
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juju
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so the radiant should be involve in this model u think

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