On turbulent spots in a laminar boundary layer subjected to a self-similar adverse pressure gradient

Avi Seifert, Israel J Wygnanski

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

An experimental investigation concerned with the characteristics of a turbulent spot propagating in a laminar boundary layer subjected to a self-similar adverse pressure gradient was conducted. Some small differences in the normalized shape of the undisturbed velocity profile were found to have a major influence on the spreading rate of the spot at comparable Reδ*. The rate of spread of the spot was found to be most dramatically affected by the pressure gradient. The interaction of the spot with the wave packet was enhanced by the adverse pressure gradient.

Original languageEnglish (US)
Pages (from-to)185-209
Number of pages25
JournalJournal of Fluid Mechanics
Volume296
StatePublished - Jan 1 1995
Externally publishedYes

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laminar boundary layer
Laminar boundary layer
Pressure gradient
pressure gradients
Wave packets
wave packets
velocity distribution
interactions

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Condensed Matter Physics

Cite this

On turbulent spots in a laminar boundary layer subjected to a self-similar adverse pressure gradient. / Seifert, Avi; Wygnanski, Israel J.

In: Journal of Fluid Mechanics, Vol. 296, 01.01.1995, p. 185-209.

Research output: Contribution to journalArticle

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