V2EX incompressible flow

Incompressible Flow

定义 Definition

不可压缩流(或不可压缩流动):在流动过程中,流体密度近似保持不变的流动状态。常用于描述低速液体流动马赫数较低的气体流动的近似模型。

发音 Pronunciation (IPA)

/nkmprsbl flo/

例句 Examples

Incompressible flow is a good approximation for water moving through a pipe.
不可压缩流对于水在管道中流动是一个很好的近似。

In many engineering problems, assuming incompressible flow simplifies the governing equations without significantly reducing accuracy.
在许多工程问题中,假设不可压缩流可以在不明显降低精度的情况下简化控制方程。

词源 Etymology

incompressible 来自前缀 in-(表示“不、无”)+ compressible(“可压缩的”),而 compress 源于拉丁语 compressus(“压紧、压缩”)。flow 源于古英语 flōwan(“流动”)。合起来表示“密度不随压力变化而明显改变的流动”。

相关词 Related Words

文学与典籍 Literary Works

  • Fluid Mechanics(Frank M. White):大量章节以不可压缩流为基础建立分析框架。
  • An Introduction to Fluid Dynamics(G. K. Batchelor):在基础理论与推导中频繁使用不可压缩流假设。
  • Viscous Fluid Flow(Frank M. White):以不可压缩黏性流为核心讨论边界层等现象。
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