INITIAL-VALUE PROBLEM FOR BOUNDARY-LAYER FLOWS

被引:67
作者
GUSTAVSSON, LH
机构
[1] Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, Cambridge
关键词
D O I
10.1063/1.862819
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The behavior of small disturbances in a boundary layer flow is studied. The initial-value problem is solved formally with Fourier-Laplace transforms, and an expression for the development of the velocity component normal to the wall is obtained. It is found that a disturbance evolves not only as discrete waves of the Tollmien-Schlichting type, but also has a portion described by a continuous spectrum. This portion is associated with a branch cut of the solution in the complex plane of the Laplace transform variable. © 1979 American Institute of Physics.
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页码:1602 / 1605
页数:4
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