A new and uniform method to express the constitutive equation for analyzing non-Newtonian fluid flow was put forward on the analyses of all items in momentum equation. 為了解決此問(wèn)題,在分析流體運動(dòng)方程中各項物理意義的基礎上,給出了一種統一的本構方程的書(shū)寫(xiě)形式,用于研究非牛頓流體圓管和環(huán)空管流層流流動(dòng)規律。