Which expert has seen a formula like this for determining the Reynolds number limit?
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This post was last edited by longkui1990 on 2015-9-10 20:26. Today I came across something a bit more sophisticated; it looks like this: Ret=396(di/є)lg(3.7di/є), where є represents the absolute roughness and di is the inner diameter of the pipe. The criterion for determining the flow pattern is Re
When the Re number is less than 10, it is laminar flow; 10