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Old   January 7, 2006, 10:10
Default Simple question about pressure outlet.
  #1
Kiddo
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Hi, all
I'm used to run CFX and new to Fluent. I'm running a test case to simulate a ball moving in free stream :<font color=blue>
A ball(dia=1m) inside a brick (20m x 20m x20m), with
--one face(Xmin) velcity-inlet speed=1 m/s
--opposite face(Xmax) pressure-outlet
then I don't know what the other faces BC should be ? (I've used pressure-outlet/Outlet Vent, but it will always show that reversed flow on these 4 sides and the residule converged curve is not good)</font>

Thanks in advance. K.
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Old   January 7, 2006, 10:56
Default Re: Simple question about pressure outlet.
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sharuk
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what is ur viscous model,ur problem seems to be a transition case, reversed flow is not an error.
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Old   January 7, 2006, 19:50
Default Re: Simple question about pressure outlet.
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Kiddo
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Thanks for response! What I'm really cared about is the reversed flow warning. Is there a boundary type suitable for openings which allow both IN & OUT in Fluent ?
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Old   January 8, 2006, 05:28
Default Re: Simple question about pressure outlet.
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sharuk
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"Is there a boundary type suitable for openings which allow both IN & OUT in Fluent ?"

What exactly u want, when u r not sure about your outlet condition, use outflow boundary type in fluent
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