Instability of accelerated boundary layers induced by surface suction

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)851-859
Journal / PublicationAIAA Journal
Volume40
Issue number5
Publication statusPublished - May 2002
Externally publishedYes

Abstract

Accelerated boundary layers are considered to be stable for practical purposes. It is shown that small suction nonuniformities can induce an instability that results in the generation of streamwise vortices. Addition of a uniform suction is not effective in controlling this instability. It is shown that nonuniformities of surface blowing might induce a similar instability and that the characteristics of this instability are also little affected by the magnitude of the blowing. The same nonuniformities appear to have a small effect on the traveling (Tollmien-Schlichting) wave instability in the range of parameters studied. It is shown that oblique waves become dominant if the amplitudes of the nonuniformities become large enough.

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Citation Format(s)

Instability of accelerated boundary layers induced by surface suction. / Roberts, P. J D; Floryan, J. M.

In: AIAA Journal, Vol. 40, No. 5, 05.2002, p. 851-859.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review