V2EX turbulent flow

Turbulent Flow

释义 Definition

湍流(流动):指流体(如空气、水)在流动时出现不规则、剧烈的速度与压力波动,伴随涡旋与强混合的流动状态。常见于流速较大、尺度较大或黏性影响相对较弱的情况(通常与较高雷诺数相关)。(相对概念:laminar flow 层流)

发音 Pronunciation (IPA)

/tr.bj.lnt flo/

例句 Examples

Turbulent flow makes the water look rough.
湍流会让水面看起来很粗糙、翻滚。

In a narrow pipe, turbulent flow can increase energy loss and reduce system efficiency.
在狭窄的管道中,湍流会增加能量损失,从而降低系统效率。

词源 Etymology

turbulent 来自拉丁语 turbulentus(“混乱的、骚动的”),与 turba(“人群、骚乱”)相关;flow 源自古英语 flōwan(“流动”)。组合成 turbulent flow,字面即“混乱翻涌的流动”,后来在流体力学中被固定用来指代与“层流”相对的流动状态。

相关词 Related Words

文学与著作 Literary Works

  • Stephen B. Pope, Turbulent Flows(系统讨论湍流理论与建模,术语“turbulent flow”高频出现)
  • G. K. Batchelor, An Introduction to Fluid Dynamics(经典流体力学教材,包含湍流/层流对比与分析)
  • L. D. Landau & E. M. Lifshitz, Fluid Mechanics(理论物理经典著作,涉及湍流与统计描述)
  • H. Schlichting, Boundary-Layer Theory(边界层理论名著,讨论边界层转捩与湍流边界层)
  • Osborne Reynolds (1883), “An Experimental Investigation of the Circumstances Which Determine Whether the Motion of Water Shall Be Direct or Sinuous…”(著名的雷诺实验论文,奠定层流与湍流划分基础)
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