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October 27, 2003, 23:12 |
roughness of thin surface
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#1 |
Guest
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hi,friends I need to difine different roughness on the twos of thin surface,who knows how to? I have referred to this topic, http://www.cfd-online.com/Forum/cfx_....cgi?read=4397 but I can not distinguish the two surfaces,e.g. which one is the inside one or which one is the upper,anyone could help me? thanks.
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October 28, 2003, 13:41 |
Re: roughness of thin surface
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#2 |
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Hi Colins,
To find the direction, define an outlet boundary condition to the surface. The arrows will be on the side which is touching the fluid. You can then switch it back to a wall and apply the appropriate B.C. -Robin |
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October 28, 2003, 23:03 |
Re: roughness of thin surface
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#3 |
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To robin, I have tried following what you suggested,but I cannot apply a inlet/outlet boundary on a subdomain surface,the error reported was "The surface list 'Solid 4.4' contains the following error(s). Solid 4.4 is not an exterior face of a domain." Btw,I am using CFX5.5 -colins
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October 29, 2003, 04:05 |
Re: roughness of thin surface
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#4 |
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first,you can creat a subdomain which include the thinsurface you will defined,then in the condition boundary,you'd creat the thinsurface,and you may define different roughness on the two side of the thinsurface.may you succeed1
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October 29, 2003, 13:06 |
Re: roughness of thin surface
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#5 |
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Upgrade to 5.6.
-Robin |
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October 30, 2003, 01:13 |
Re: roughness of thin surface
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#6 |
Guest
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To Robin, thank you.I have done it. -colins
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