V2EX hydrostatic pressure

Hydrostatic Pressure

Definition / 释义

静水压力:静止流体(如静止的水、油或空气)由于自身重量在某一深度对物体表面产生的压力。一般随深度增加而增大,常用公式为 \(p=\rho g h\)(在密度近似恒定、重力加速度恒定时)。

Pronunciation / 发音(IPA)

/hadrosttk prr/

Examples / 例句

The hydrostatic pressure increases with depth in the lake.
湖水中的静水压力会随着深度增加而增大。

Engineers calculated the hydrostatic pressure on the dam wall to ensure it could withstand seasonal water levels.
工程师计算大坝墙面所受的静水压力,以确保它能承受季节性水位变化带来的作用力。

Etymology / 词源

hydro- 来自希腊语 hydōr,意为“水”;**-static** 来自希腊语 statikos,意为“使静止的、静态的”;pressure 源自拉丁语 pressura,与“挤压、施压”相关。组合起来,字面意思就是“静止水(流体)产生的压力”,后来在物理与工程语境中泛指“静止流体的压力”。

Related Words / 相关词

Notable Works / 文献与著作中的用例

  • Fox and McDonald’s Introduction to Fluid Mechanics(《福克斯与麦克唐纳:流体力学导论》)
  • Fluid Mechanics by Frank M. White(Frank M. White《流体力学》)
  • The Feynman Lectures on Physics(《费曼物理学讲义》相关章节常讨论静水与压力概念)
  • Principles of Naval Architecture(《船舶设计原理》涉及船体受静水压力的计算与应用)
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