V2EX laminar flow

Laminar Flow

Definition / 定义

laminar flow层流;指流体以平行“层”状方式平稳流动,速度分布有规律、混合很少,通常在较低雷诺数条件下出现(与湍流相对)。

Pronunciation / 发音

/lmnr flo/

Examples / 例句

Water in a narrow tube can show laminar flow.
细管中的水流可能呈现层流。

In microfluidic devices, maintaining laminar flow helps control how chemicals meet and react without turbulent mixing.
在微流控装置中,保持层流有助于控制化学物质如何接触并反应,而不会被湍流混合打乱。

Etymology / 词源

laminar 来自拉丁语 lamina,意为“薄片、薄层”,引申为“像一层层薄片那样的”。因此 laminar flow 字面意思就是“层状的流动”,强调流体像分层薄片一样平行滑动。

Related Words / 相关词

Literary Works / 文学作品

  • An Introduction to Fluid Dynamics(G. K. Batchelor)流体力学经典教材中系统讨论层流与湍流。
  • Fluid Mechanics(L. D. Landau & E. M. Lifshitz,《流体力学》)在连续介质与黏性流动章节中频繁使用该术语。
  • Transport Phenomena(R. B. Bird, W. E. Stewart, E. N. Lightfoot,《传递现象》)在动量传递与管流分析中常见“laminar flow”。
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