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入口速度改变，需要重新验证网格无关性吗？

Fluent

3 Posts 2 Posters 5.2k Views

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simthere
wrote on last edited by

#1
假如入口速度为1m/s，
1. 根据入口速度，介质密度粘度等参数，初步计算Y+
2. 划分网格，fluent计算，查看Y+
3. 如果合理，网格不用重新划分，如果不合理，那么重新划分网格
4. 加密网格，加密后的网格，同样要验证网格无关性
5. 比较加密前后的结果，验证网格无关性
当时如果入口速度变为了3m/s
那么Y+改变了很多，导致网格重新划分，网格无关性重新验证

这个思路是否正确？如果正确，感觉fluent模拟真的好难
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CFD中文网
wrote on last edited by

#2

要是我我就偷懒了。确实懒的搞:expressionless:
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simthere
replied to CFD中文网 on last edited by

#3

@cfd-china :sunglasses: ，其实我也懒得搞了。。我就问问:cheeky:
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