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Strouhal number

In dimensional analysis, the Strouhal number is a quantity describing oscillating flow mechanisms. Often, it is given as

Sr = f*D/V

where Sr is the Strouhal number, f is the frequency of vortex shedding, D is the hydraulic diameter of the object in the fluid flow and V is the velocity of the fluid. The Strouhal number is a function of the Reynolds number Re and in the region 200 See also: dimensionless number (which includes a listing of other dimensionless numbers)

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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Strouhal number".