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Dimensionless quantities

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Old   August 4, 2019, 22:42
Default Dimensionless quantities
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Njoroge
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Can someone help me on how to work out the actual velocity from a published result? I have tried a few tricks that I know but it doesn't work. Say for example, having u/U=10.(I assume u to be instantaneous velocity at a point while U is the mean inlet velocity). so I get my u=U*10. The problem with this is that it is physically not correct. Am working on a sudden contraction/expansion channel. Can someone help?
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