V2EX nonnewtonian

Non-Newtonian

释义 Definition

非牛顿的;(流体)非牛顿型的:指流体的黏度不恒定,会随剪切速率(搅拌、挤压、流动速度变化带来的“变形速度”)而改变,因此不遵守牛顿黏性定律。常见于淀粉浆(oobleck)番茄酱牙膏血液等。(也常说 non-Newtonian fluid:非牛顿流体。)

发音 Pronunciation (IPA)

/nnnjutnin/(BrE)
/nnnutnin/(AmE)

例句 Examples

The mixture becomes non-Newtonian when you add cornstarch.
加入玉米淀粉后,这种混合物会变成非牛顿流体的性质。

Because many polymer solutions are non-Newtonian, engineers must account for shear-dependent viscosity when designing pumps and pipelines.
由于许多聚合物溶液具有非牛顿特性,工程师在设计泵和管道时必须考虑黏度随剪切变化的影响。

词源 Etymology

non-(“非、不”)+ Newtonian(“牛顿的/遵循牛顿理论的”)。其中 Newtonian 源自物理学家艾萨克牛顿(Isaac Newton)的姓氏;“非牛顿”在流体力学中用来表示不循牛顿提出的黏性关系(剪切应力与剪切速率成正比、黏度为常数)的材料行为。

相关词 Related Words

文学与著作中的用例 Literary Works

  • 《Transport Phenomena》(Bird, Stewart & Lightfoot):在动量传递与工程应用章节中讨论非牛顿流体模型与黏度随剪切变化的现象。
  • 《Rheology: Principles, Measurements, and Applications》(Christopher W. Macosko):系统介绍流变学测量与非牛顿行为(如剪切变稀/变稠)。
  • 《An Introduction to Fluid Dynamics》(G. K. Batchelor):在流体力学基础框架下提及牛顿流体与非牛顿流体的区分与适用范围。
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