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Reynold's number
(redirected from Reynolds number)

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia 0.01 sec.
Reynold's number
a dimensionless number allotted empirically to the circumstances in which turbulence occurs in fluids flowing through vessels. It takes into account the velocity of the flow, the diameter of the vessel, and the density and viscosity of the fluid. Used to explain the development of heart murmurs.
$$\hbox{Reynold's number }={\hbox{radius\times velocity\times density}\over\hbox{viscosity}}$$


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In particular, the researchers found that a mixing flow in the outer core with magnetic Reynolds number in the range of 200, which they suggest is a physically reasonable range, could account for the historically measured rate of decrease of the geomagnetic dipole moment.
Phelps has a high Reynolds number in the pool, exceeding 1 million, meaning that his strokes create sufficiently powerful inertia to carry him through the water, and viscosity is not overwhelmingly important.
capillary number Ca and Reynolds number Re can be defined as follows: Ca = [mu][V.
 
 
 
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