本文根据流体运动的基本原理和卡森液体的本构方程,导出符合卡森流变模式的非牛顿液体在同心环空中轴向结构流流动规律的精确解表达式,即速度分布、流核尺寸和平均流速的精确解表达式。并用导出的表达式,通过计算机运算而得的结果绘制出不同环空间隙内的速度分布图和卡森液体平均流速与压降关系图,便于工程上计算压降。文中还有计算实例和实测压力损失值与计算压力损失值对比表。 Based on the basic principle of fluid motion and the constitutive equation of Carson’s fluid, the exact solution to the axial flow of non-Newtonian liquid in concentric annulus is derived according to the Karsson rheological model, namely velocity distribution, And the exact solution to the average velocity. And using the derived expression, the results of the computer operation to draw the velocity profile in different annulus gap and Carson liquid average velocity and pressure drop diagram, to facilitate the project to calculate the pressure drop. The article also has calculated examples and measured pressure loss value and calculated pressure loss value comparison table.