The wall jet as limiting case of a boundary-layer flow induced by a permeable stretching surface

被引：14
|
作者：
Magyari, E [1 ]
Keller, B [1 ]
机构：
[1] ETH Zurich, Inst Bldg Technol, Chair Phys Bldg, CH-8093 Zurich, Switzerland
来源：
ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK | 2001年 / 52卷 / 04期
关键词：
wall jet; self-similar boundary layers; stretching surfaces; entrainment; scaling;
D O I：
10.1007/s00033-001-8136-1
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The self-similar steady boundary-layer flow induced by a permeable continuous surface stretching with velocity U-w (x) = A.x(-1/2) in a quiescent fluid in the presence of a lateral mass flux with suction velocity V-w (x) = - (vA/4)(1/2).x(-3/4). f(w) is considered. By making use of the exact analytic solution of the flow problem, it is shown that in the limiting case of a vanishing lateral mass flux ( f(w) --> 0) this stretching-induced flow goes over by an adequate scaling transformation in the well known wall-jet.
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页码：696 / 703
页数：8
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