The continuous spectrum of the Orr-Sommerfeld equation: note on a paper of Grosch & Salwen
The continuous spectrum of the Orr-Sommerfeld equation: note on a paper of Grosch & Salwen
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奥尔-索末菲方程的连续谱：Grosch 论文的注释
DOI：
10.1017/s0022112091002513
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发表时间：
1991
影响因子：
3.7
通讯作者：
A. Craik
中科院分区：
文献类型：
--
作者：
A. Craik
Grosch & Salwen（1978）讨论了连续谱在由线性Orr-Sommerfeld方程控制的时间和空间稳定性问题中的贡献。他们计算的Blasius边界层和层流射流剖面的时间连续特征函数显示出惊人的差异。本文通过一个简单的模型提供了对结果的更好的物理理解，并表明这些差异是明显的而不是真实的。
Grosch & Salwen (1978) discuss the continuous-spectrum contribution in both temporal and spatial stability problems that are governed by the linear 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.