A non-Newtonian fluid is one whose 粘度 changes under an applied 剪应力. Unlike a Newtonian fluid where viscosity is constant, its flow properties are not described by a linear relationship between shear 压力 ([latex]\tau[/latex]) and shear rate ([latex]\dot{\gamma}[/latex]). This dependency can manifest as 剪切稀化 (粘度随应力降低) 剪切增稠 (粘度随应力增加而增加)。





