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How to implement ghost cell wall for sharp angle?

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Old   July 31, 2004, 04:37
Default How to implement ghost cell wall for sharp angle?
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Qu Kun
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For blunt body, the ghost cell boundary condition is easy. But for a geometry with sharp angle, how to implement the ghost cell boundary condition?

To find the ghost point, the normal vector of the wall is needed. But in the region near the sharp angle, how can I find the normal vector for a vertex of a sharp angle??

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Old   July 31, 2004, 05:56
Default Re: How to implement ghost cell wall for sharp ang
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salem
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Hi qu kun I think you can solve this problem by taking the normal vector at cell center for each cell. I hopew this useful
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Old   August 2, 2004, 04:54
Default Re: How to implement ghost cell wall for sharp ang
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Qu Kun
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Hi, salem

I'm not very clear about your advice. Could you please contact me by email(my email: quain_tchew@yahoo.com)?

Thanks
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Old   August 2, 2004, 07:29
Default Re: How to implement ghost cell wall for sharp ang
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salem
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Hi qu Kun I mean that why you use vertex normal vector, near singular point you can take normal vector for each cell on both sides of singular point as normal vector at cell center. may i do not understand your question. Regards
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