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Gambit/Fluent: Fence Porosity - Option?

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Old   June 12, 2008, 09:25
Default Gambit/Fluent: Fence Porosity - Option?
  #1
Andreas Hornig
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Hi there,

I want to simulate the airflow through a fence with a certain porosity, but I want to avaoid constructing it with gambit, because it is very difficlut to get a good quality mesh. Is there some kind of option, so that I can use a line instead and just give thise line the property of beeing this line with the porosity or maximum flow rate through it?

THX in advance,

Andreas
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Old   June 12, 2008, 17:05
Default Re: Gambit/Fluent: Fence Porosity - Option?
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red lemon
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use porous jump.
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Old   June 13, 2008, 08:01
Default Re: Gambit/Fluent: Fence Porosity - Option?
  #3
Andreas Hornig
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hi red lemon,

could you please tell me the path of this menu option? I haven't heard this option and I don't know, where this is in gambit oder fluent.

greets, Andreas
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Old   June 13, 2008, 08:29
Default Re: Gambit/Fluent: Fence Porosity - Option?
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red lemon
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set up the grid in gambit with the fence as an interior zone (facial interior as a connected but shared face). Then change the zone type in fluent to porous jump using the define>bc panel. Then set your loss coefficients. If 3d fx are important then use porous media instead.
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Old   June 13, 2008, 17:14
Default Re: Gambit/Fluent: Fence Porosity - Option?
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Andreas Hornig
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hi and thx for your help. I tried to build the model according to your tips, if I understood them right.

horn.hdtvtotal.com/download/poroustest.zip is that right in concept?(it just a quick test to have a qick result before doing the right model)

do I really have to do 2 seperated faces/areas like shown?

greets, Andreas
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