On the low frequency linear instability of the Blasius flow

Authors
Dey, J
Citation
J. Dey, On the low frequency linear instability of the Blasius flow, ACT MECHAN, 150(3-4), 2001, pp. 263-266
Citations number
5
Categorie Soggetti
Mechanical Engineering
Journal title
ACTA MECHANICA
ISSN journal
00015970 → ACNP
Volume
150
Issue
3-4
Year of publication
2001
Pages
263 - 266
Database
ISI
SICI code
0001-5970(2001)150:3-4<263:OTLFLI>2.0.ZU;2-L
Abstract
Considering the ratio of the mean flow Reynolds number to the wave Reynolds number, it is shown that for the low frequency instability the mean flow i nertia is small in comparison to that of the disturbance. The mean flow gra dient thus being small is neglected to obtain a truncated Orr-Sommerfeld eq uation. The numerical solutions of this equation show instability at lower Reynolds numbers.