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March 10, 2008, 05:43 |
Yplus adaptation grid
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#1 |
Guest
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Hi, I want to use y+ adapt but it notes me always : cells to coarsen not to refine and my mesh isn't fine at all !!! it is so illogical to have large cells and the fluent want to coarsen them, perhaps I forgot or I must change something in the allowed min and max, please help.
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March 11, 2008, 02:48 |
Re: Yplus adaptation grid
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#2 |
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as i know,
y+ value depends upon the flow behaviour, like velocity, density and viscosity etc, so first of all calclute a y+ value analatically for your geometry. and give this value in fluent as max. u can also calculate you y+ by pressing compute button in y+/y*. for different turbulence model its value differes. u can also you wall function. dear read fluent manuall, specially SA model and K-E model and also detail of y+ |
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March 11, 2008, 05:00 |
Re: Yplus adaptation grid
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#3 |
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Thanks!
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