出口端联结半无限空间的有限长圆管的Stokes流动  

CREEPING FLOW FROM A CIRCULAR TUBE WITH FINITE LENGTH INTO SEMI-INFINITE SPACE

作　　者：是长春 颜宪尧 

机构地区：[1]北京大学力学系 [2]美国密执安州立大学数学系

出　　处：《力学学报》1989年第6期641-648,共8页Chinese Journal of Theoretical and Applied Mechanics

摘　　要：本问题的解可表达成无穷级数,它既包含偶函数项,又包含奇函数项;入口截面上速度分布是给定的,数值计算结果表明:当管长超过半径的2倍时,管子中段总有泊肃叶流动,入、出口段的长度不超过半径长度,特征压差和阻力系数在一定管长范围内近似地线性正比例于管长。The solution of the problem can be expressed by an infinite series with odd terms as well as even terms. The velocity distribution on the inlet surface is given. Numerical results show that the region of a Poiseuille profile in the tube is always existent when the length of the tube is longer than the diameter. Both the characteristic pressure difference and the friction increase linearly with the length of the tube approximately.

关 键 词：半无限空间 圆管 STOKES流动 蠕流 

分 类 号：O357.2[理学—流体力学]