Calculation of the Entrance Length of the pipe

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At time stamp 2:38 while calculating the Entrance length you have used 0.06 in multiplying , what does that signifies

OpenFOAM-version-7 Simulating-Hagen-Poiseuille-flow-through-a-pipe-in-OpenFOAM 02-03 min 30-40 sec

__Answers:__

Hello,

That is the formula to calculate the entrance length in a laminar flow. For more information: <a href="https://www.sciencedirect.com/topics/engineering/hydrodynamic-entrance-length" target="_blank" title="Entrance length">Entrance length</a>

Regards

Biraj Khadka

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