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- A generalized Newtonian fluid is an idealized fluid for which the shear stress is a function of shear rate at the particular time, but not dependent upon the history of deformation. Although this type of fluid is non-Newtonian (i.e. non-linear) in nature, its constitutive equation is a generalised form of the Newtonian fluid. Generalised Newtonian fluids satisfy the following rheological equation: where is the shear stress, and the shear rate. The quantity represents an apparent or effective viscosity as a function of the shear rate. The most commonly used types of generalized Newtonian fluids are:
* Power-law fluid
* Cross fluid
* Carreau fluid
* Bingham fluid It has been shown that Lubrication theory may be applied to all Generalized Newtonian fluids in both two and three dimensions. (en)
- 廣義牛頓流體(英語:generalized Newtonian fluid)是一種理想流體,其剪應力為特定時間點之剪切速率的函數,與變形過程無關。儘管此類型流體屬於非牛頓流體(即非線性流體),但其本構方程與牛頓流體一致。廣義牛頓流體滿足以下流變方程: 其中,為剪應力,而為剪切速率。為表觀或有效黏度,為剪切速率的函數。 常用的廣義牛頓流體模型有:
* 冪律流體
* 克羅斯流體
* 卡羅流體
* (zh)
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- 廣義牛頓流體(英語:generalized Newtonian fluid)是一種理想流體,其剪應力為特定時間點之剪切速率的函數,與變形過程無關。儘管此類型流體屬於非牛頓流體(即非線性流體),但其本構方程與牛頓流體一致。廣義牛頓流體滿足以下流變方程: 其中,為剪應力,而為剪切速率。為表觀或有效黏度,為剪切速率的函數。 常用的廣義牛頓流體模型有:
* 冪律流體
* 克羅斯流體
* 卡羅流體
* (zh)
- A generalized Newtonian fluid is an idealized fluid for which the shear stress is a function of shear rate at the particular time, but not dependent upon the history of deformation. Although this type of fluid is non-Newtonian (i.e. non-linear) in nature, its constitutive equation is a generalised form of the Newtonian fluid. Generalised Newtonian fluids satisfy the following rheological equation: where is the shear stress, and the shear rate. The quantity represents an apparent or effective viscosity as a function of the shear rate. (en)
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- Generalized Newtonian fluid (en)
- 廣義牛頓流體 (zh)
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