英语词汇“Reynolds number”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Reynolds number

/ˈrɛn(ə)ldz

noun Physics

A dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent.

This is evaluated as ρυd/μ, where d is a diameter or other characteristic length of the system, υ is a typical speed, ρ is the fluid density, and μ is the viscosity of the fluid. The magnetic Reynolds number is an analogous number used in the description of the dynamic behaviour of a magnetized plasma.

Small objects have lower Reynolds numbers - a dimensionless quantity proportional to the ratio of the product of the size and flow speed to viscosity....

He spoke on boundary layer theory, in particular flows at high Reynolds numbers, in his inaugural lecture in London.
For the purpose of biological fluid dynamics, scale is represented by the dimensionless Reynolds number, a ratio that reflects the influence of inertial relative to viscous forces.

Origin

Early 20th century: named after Osborne Reynolds (1842–1912), English physicist.

单词	Reynolds number
释义	Reynolds number /ˈrɛn(ə)ldz / noun Physics A dimensionless number used in fluid mechanics to indicate whether fluid flow past a body or in a duct is steady or turbulent. This is evaluated as ρυd/μ, where d is a diameter or other characteristic length of the system, υ is a typical speed, ρ is the fluid density, and μ is the viscosity of the fluid. The magnetic Reynolds number is an analogous number used in the description of the dynamic behaviour of a magnetized plasma. Small objects have lower Reynolds numbers - a dimensionless quantity proportional to the ratio of the product of the size and flow speed to viscosity.... He spoke on boundary layer theory, in particular flows at high Reynolds numbers, in his inaugural lecture in London. For the purpose of biological fluid dynamics, scale is represented by the dimensionless Reynolds number, a ratio that reflects the influence of inertial relative to viscous forces. Origin Early 20th century: named after Osborne Reynolds (1842–1912), English physicist.
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