环形截面螺旋管道内的粘性流动  

VISCOUS FLOW IN HELICAL PIPES WITH NARROW ANNULAR CROSS SECTION

作　　者：章本照[1] D. N. Fan 

机构地区：[1]浙江大学力学系,310027 [2]美国Howard大学,dc20059

出　　处：《力学学报》1992年第5期535-545,共11页Chinese Journal of Theoretical and Applied Mechanics

摘　　要：根据张量分析,建立了非正交的曲线柱坐标系巾的N-S方程,采用摄动法求解环形截面螺旋管道内的粘性流动。结果表明:环形截面上存在二次流。The Navier-Stokes equations are established for a nonorthognal coordinate-system based on tensor analysis. The zeroth-, the first- and the second-order (t = 0) analytic solutions are obtained for fully developed flow in helical pipes with narrow annular cross section using a perturbation method. It is found that there is a secondary flow on the annular cross section.

关 键 词：张量 螺旋管道 二次流 粘性流动 

分 类 号：O357[理学—流体力学]