Speed of water at a certain poinmt in a pipe

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To calculate the speed of water at a specific point in a pipe, the cylindrical Navier-Stokes equation should be solved with the correct boundary conditions. The assumption that all water at a given radius moves at the same speed is valid, but it is not directly related to laminar flow. The discussion emphasizes the importance of applying the right mathematical framework to obtain an accurate analytical solution. Understanding these principles is crucial for fluid dynamics in pipe systems. Accurate calculations can lead to better predictions of flow behavior.
merrittr
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Hi

I was wondering how to calculate the speed of the water at a cetain point in the pipe

(i assume that all the water at that radius is going at the same speed due to laminar flow)
 
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Yes it will be going at the same speed. No it has nothing to do with laminar flow.

You just solve the cylindrical Navier-Stokes equation with the appropriate boundary conditions and you will have a nice analytical answer for your profile in the pipe.
 

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