MIXED FREE AND FORCED-CONVECTION IN THE INCOMPRESSIBLE BOUNDARY-LAYER ALONG A ROTATING VERTICAL CYLINDER WITH FLUID INJECTION

被引:14
作者
DASKALAKIS, JE
机构
[1] Public Power Corporation, System Studies Department, Athens, GR 10432
关键词
FLUID MECHANICS; FREE-FORCED CONVECTION; ROTATING CYLINDER; MASS TRANSFER;
D O I
10.1002/er.4440170803
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
We examine the steady incompressible laminar boundary layer flow along a vertical cylinder with isothermal walls. The mixed free and forced convection regime is studied while injection/suction of fluid can take place through the cylinder surface. The two-dimensional boundary layer equations are solved using an efficient finite difference scheme, and velocity and temperature profiles, as well as skin friction, heat transfer and pressure coefficients, are calculated. It is proved that fluid injection can considerably reduce the skin friction and heat transfer at the wall. Also, significant differences are reported when the present results are compared with published results for the zero mass transfer case.
引用
收藏
页码:689 / 695
页数:7
相关论文
共 7 条
[1]  
Bui M.N., Cebeci T., Combined free and forced convection on vertical slender cylinders, Journal of Heat Transfer, 107, pp. 476-487, (1985)
[2]  
Chen T.S., Mucoglu A., Buoyancy effects on forced convection along a vertical cylinder, Journal of Heat Transfer, 97, pp. 198-203, (1975)
[3]  
Holman J.P., Heat Transfer, (1989)
[4]  
Keller H.B., Numerical methods in boundary‐layer theory, Annual Review of Fluid Mechanics, 10, pp. 417-433, (1978)
[5]  
Nakamura I., Yamashita S., Watanabe T., Laminar boundary layer on an rotating thin cylinder in a axial flow, Bulletin of the Japanese Society of Mechanical Engineers, 27, 231, pp. 1887-1892, (1984)
[6]  
Nakamura I., Watanabe T., Laminar boundary layer on a rotating circular cylinder in an axial flow, Bulletin of the Japanese Society of Mechanical Engineers, 28, 243, pp. 1893-1898, (1985)
[7]  
Pop I., Kumari M., Nath D., Combined free and forced convection along rotating a vertical cylinder, International Journal of Engineering Science, 27, 3, pp. 193-202, (1989)