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Old   May 11, 2012, 14:46
Default axisymmetric
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hi everybody,

I have some barrier and I want to solve my problem axisymmetric.
I attach you my result but it's not true, I can't understand why the streamlines go up instead of going right!!!?!?!??

air enter from inlet and out side the barrier is atmosphere, actually air from indoor go to outdoor. and I rotate my model 90 degree to solve the problem axisymmetric.

what should I do to preventing the fluid going up??!?? if you rotate it -90 it should operate such as a stack.
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Old   May 13, 2012, 06:19
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Is here anybody that can reply my questions????!?!?!?
please help me!!!!
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Old   May 13, 2012, 07:22
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The following post would be of help:

http://cape-forum.com/index.php/topic,1259.0.html
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Old   May 14, 2012, 01:55
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thank you mali

but my problem was free convection and I had forgot setting my fluid an ideal gas.
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Old   May 14, 2012, 10:58
Default I think, you could extend calculation domain
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my answer can be wrong... but

In my opinion, outflow condition(neumann boundary condition) doesn't likes

backflow, so, if you have enough computer resource, how about extend it's

length?


// my mother-language is not an English, please forgive my grammatical error



Cartman.
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Old   May 15, 2012, 05:38
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Quote:
Originally Posted by cartman View Post
my answer can be wrong... but

In my opinion, outflow condition(neumann boundary condition) doesn't likes

backflow, so, if you have enough computer resource, how about extend it's

length?


// my mother-language is not an English, please forgive my grammatical error



Cartman.

thank you Cartman,

It's done, I select my density of material a Bussinique model and it give me well solutions.

bye.
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