摘要
英国的Luo和Peden提出了用无穷多个不同外径的同心环空代替偏心环空来求解偏心环空中流体流动问题.本文用Luo-Peden方法对幂律流体在倾斜的同心环空中层流螺旋流和倾斜旋转内管的偏心环空中的层流流动问题进行了近似求解,得出了视粘度和速度分布函数、流量计算公式以及压力梯度方程.
Lou and Peden proposed that an eccentric annul us is taken as an infinite concentric annula with different outer radii. Thus the problem of the eccentric annulus can be solved as a problem of concentric annuli. In this paper, the Lou-Peden method is used to obtain the approximate solutions for the problem of the laminar flow of power law fluid in an inclined eccentric annulus with a rotating inner pipe. The functions of apparent viscosity and velocity distribution, the formula for claculating volumetric flow rate and the equation of pressure gradient were presented.
出处
《石油大学学报（自然科学版）》
CSCD
1992年第6期29-34,共6页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
国家教委博士点资助项目
关键词
环空测试
幂律流体
层流
近似解
Power law flow: Concentric annulus: Spiral flow: Eccentric annulus: Approximate solution
