Schmidt numbern.

Brit.

/ˈʃmɪt nʌmbə/, U.S.

/ˈʃmɪt ˌnəmbər/

Origin: From a proper name, combined with an English element. Etymons: proper name Schmidt , number n.

Etymology: < the name of Ernst Heinrich Wilhelm Schmidt (1892–1975), German engineer + number n.

Physics.

A dimensionless number used in the study of convective mass transfer and evaluated as the ratio of kinematic viscosity to mass diffusivity.

ΘΚΠ

the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > specific numbers

Richardson number1939

Schmidt number1946

Ekman number1967

1946 Chem. Rev. 39 257 Considerations of dimensional analysis lead to the conclusion that..I_t should be a function of the particle size of the granules and of two dimensionless parameters D_pG/μ and μ/ρD_ν, the Reynolds number and Schmidt number, respectively.

2010 Y. Xu & X.-T. Yan Chem. Vapour Deposition ii. 68 If the Schmidt number is 1, the two boundary layers have the same thickness.

This entry has been updated (OED Third Edition, June 2019; most recently modified version published online March 2022).

单词	schmidt number
释义	Schmidt numbern. Brit. /ˈʃmɪt nʌmbə/, U.S. /ˈʃmɪt ˌnəmbər/ Origin: From a proper name, combined with an English element. Etymons: proper name Schmidt , number n. Etymology: < the name of Ernst Heinrich Wilhelm Schmidt (1892–1975), German engineer + number n. Physics. A dimensionless number used in the study of convective mass transfer and evaluated as the ratio of kinematic viscosity to mass diffusivity. ΘΚΠ the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > specific numbers Richardson number1939 Schmidt number1946 Ekman number1967 1946 Chem. Rev. 39 257 Considerations of dimensional analysis lead to the conclusion that..I_t should be a function of the particle size of the granules and of two dimensionless parameters D_pG/μ and μ/ρD_ν, the Reynolds number and Schmidt number, respectively. 2010 Y. Xu & X.-T. Yan Chem. Vapour Deposition ii. 68 If the Schmidt number is 1, the two boundary layers have the same thickness. This entry has been updated (OED Third Edition, June 2019; most recently modified version published online March 2022). < n.1946
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