“Strouhal”的英文意思_释义_用法

单词

Strouhal

释义

Strouhal Mech.
(ˈstraʊəl, ˈstruːəl, ‖ ˈstrouhal)
[The name of Čeněk (or Vincent) Strouhal (1850–1922), Czech scientist.]
Strouhal number: a dimensionless number used in the study of the vibrations produced in a body by a fluid flowing past it, defined as vd/u (or u/vd) where u is the fluid velocity, v the frequency of the vibration, and d the effective diameter of the body.
1949Proc. R. Soc. A. CXCVIII. 175 The results are expressed in the form of Strouhal number: S(R) = fd/Uo, where R = Uod/v.1975Offshore Engineer Dec. 42/3 For an isolated stationary cylinder the Strouhal number is fairly constant for a wide range of Reynolds numbers.

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