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The Reynolds number for a flow through a pipe is defined as
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(1) |
where is the density of the fluid, is the velocity scale, d is the pipe diameter, and is
the kinematic viscosity of the fluid. Poiseuille (laminar) flow is experimentally
found to occur for . At larger Reynolds numbers, flow becomes turbulent.
Magnetic Reynolds Number, Poiseuille Flow, Turbulence
© 1996-2007 Eric W. Weisstein
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