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发表于 2005-6-20 23:10:53
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有用过不同壁面函数的前辈看过来
fluent帮助文件上说标准壁面函数将第一个节点布置在旺盛的湍流区内,在靠近壁面布置太密的网格没有什么意义,
The use of wall funciton (log-law) requires the first grid must be put into log-law layer. If first grid is not in this region, you can';t use wall function.
又说设边界层时至少10层,这到底是什么意思,
At least 10 grid points in boundary layer, that means you need enough points to resolve boundary layer.
标准壁面函数究竟能否计算壁面边界层内流动情况?
strictly speaking,No.
Check wilcox book.
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