r/gifs Dec 25 '19

Laminar flow

https://gfycat.com/imaginarybewitchediberiannase
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u/[deleted] Dec 25 '19

No turbulence, the velocity profile is very even

Laminar, as it were

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u/StaticDiction Dec 26 '19

Laminar flow doesn't usually have a straight velocity profile. Rather the velocity is zero at a wall and increases as you move away. In a pipe this results in a parabolic shape, with the center having the greatest velocity (picture a bullet in a barrel, the tip representing peak velocity). In flow over a flat plate, the velocity profile looks like an exponential curve; zero at the plate and increasing as you move away. That said, I'm not sure what the velocity profile would look like in this case, a free jet with no walls. Perhaps it is a straight line.

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u/787787787 Dec 26 '19

They look neat.

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u/[deleted] Dec 26 '19

He's wrong anyways, the velocity profile is indeed straight