An experimental and theoretical study of a boundary layer approaching separation

Kevin Elsberry, Oleg Likhachev, Ming De Zhou, I. Wygnanski

Research output: Contribution to conferencePaperpeer-review

3 Scopus citations

Abstract

A boundary layer maintained as close as possible to separation over an extended distance was produced, in accordance with the concept of Stratford. The results comprise the first comprehensive study of a Stratford type flow and are intended to assist in the development of turbulence models for flows close to separation. The resulting layer exhibited a nearly constant shape factor of 2.5 and approximately linear streamwise growth of the integral length scales. The flow exhibited a definite non-equilibrium character, indicated by the differing scales required for collapse of the mean velocity and turbulence intensity profiles. Application of the linear stability theory predicted a most amplified frequency in reasonable agreement with experimental spectral results.

Original languageEnglish (US)
Pages1-28
Number of pages28
StatePublished - 1997
Externally publishedYes
Event35th Aerospace Sciences Meeting and Exhibit, 1997 - Reno, United States
Duration: Jan 6 1997Jan 9 1997

Other

Other35th Aerospace Sciences Meeting and Exhibit, 1997
Country/TerritoryUnited States
CityReno
Period1/6/971/9/97

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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