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单词 Reynolds number
释义

Reynolds number

英语例句库

Ordinarily, the thickness of velocity boundary layer and grid Reynolds number are used as the delimitating standards for flow field and aerothermal heating computations respectively.

通常的做法是，对于流场计算以速度边界层厚度作为法向网格尺寸划分标准，对于热流计算则根据网格雷诺数确定网格尺寸。

原声例句
TED-Ed（视频版）

The Reynolds number is useful for understanding simple scenarios, but it’s ineffective in many situations.

雷诺数对于理解简单的场景很有用，但在许多情况下是无效的。

Veritasium真理元素

[Derek] For fluid mechanics, I always expect that you have to keep the Reynolds number the same as in the real world phenomena.

- [Derek] 对于流体力学，我总是希望你必须保持雷诺数与现实世界现象相同。

中文百科

雷诺数

穆迪图说明达西摩擦因子f和雷诺数和相对粗糙度的关系
Una calle de vórtices alrededor de un cilindro. Esto ocurre alrededor de los cilindros, para cualquier fluido, tamaño del cilindro y velocidad de fluido, siempre que tenga un número de Reynolds de entre ~ 40 y 10³.[1]
The plume from this candle flame goes from laminar to turbulent. The Reynolds number can be used to predict where this transition will take place.
Sir George Stokes, introduced Reynolds numbers

流体力学中，雷诺数（Reynolds number）是流体惯性力\frac{\rho v^2}{L}与黏性力\frac{\mu v}{L^2}比值的量度，它是一个无量纲量。

雷诺数较小时，黏滞力对流场的影响大于惯性力，流场中流速的扰动会因黏滞力而衰减，流体流动稳定，为层流；反之，若雷诺数较大时，惯性力对流场的影响大于黏滞力，流体流动较不稳定，流速的微小变化容易发展、增强，形成紊乱、不规则的紊流流场。

英语百科

Reynolds number 雷诺数

The plume from this candle flame goes from laminar to turbulent. The Reynolds number can be used to predict where this transition will take place.
A vortex street around a cylinder. This can occur around cylinders and spheres, for any fluid, cylinder size and fluid speed, provided that the flow has a Reynolds number in the range ~40 to ~1000.[1]
Sir George Stokes, introduced Reynolds numbers
Osborne Reynolds popularised the concept

In fluid mechanics, the Reynolds number (Re) is a dimensionless quantity that is used to help predict similar flow patterns in different fluid flow situations. The concept was introduced by George Gabriel Stokes in 1851, but the Reynolds number is named after Osborne Reynolds (1842–1912), who popularized its use in 1883.
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更新时间：2025/6/23 21:26:47