THE CONTINUOUS-SPECTRUM OF THE ORR-SOMMERFELD EQUATION - NOTE ON A PAPER OF GROSCH-AND-SALWEN

被引：10

作者：

CRAIK, ADD

机构：

[1] Department of Mathematical and Computational Sciences, University of St. Andrews, Fife, KY16 9LN, St. Andrews

来源：

JOURNAL OF FLUID MECHANICS | 1991年 / 226卷

关键词：

D O I：

10.1017/S0022112091002513

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Grosch & Salwen (1978) discuss the continuous-spectrum contribution in both temporal and spatial stability problems that are governed by the Orr-Sommerfeld equation. Their computed temporal continuum eigenfunctions for the Blasius boundary layer and for a laminar jet profile show surprising differences. This note provides an improved physical understanding of the results through a simple model, and shows that these differences are more apparent than real.

引用

页码：565 / 571

页数：7