Outlook for theoretical modeling of isolated roughness-induced perturbations in turbulent boundary layers (invited)

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Theoretical modeling of perturbations introduced into turbulent boundary layers by an isolated hump can be carried out within the scope of the Reynolds-averaged Navier-Stokes equations. The main obstacle is the closure problem. Having chosen a closure model that is suitable for the boundary layer, one may expect that it will not be adequate for the perturbations. As is known from asymptotic analysis of laminar boundary layers with roughness elements, the physics and the governing equations depend on the roughness length, width, and height. Even at small heights of roughness element, one should expect that the governing equations are nonlinear. These and other questions relevant to roughness-induced perturbations are discussed in the lecture.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 37th AIAA Fluid Dynamics Conference
Pages602-613
Number of pages12
StatePublished - Nov 5 2007
Event37th AIAA Fluid Dynamics Conference - Miami, FL, United States
Duration: Jun 25 2007Jun 28 2007

Publication series

NameCollection of Technical Papers - 37th AIAA Fluid Dynamics Conference
Volume1

Other

Other37th AIAA Fluid Dynamics Conference
CountryUnited States
CityMiami, FL
Period6/25/076/28/07

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ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering

Cite this

Tumin, A. (2007). Outlook for theoretical modeling of isolated roughness-induced perturbations in turbulent boundary layers (invited). In Collection of Technical Papers - 37th AIAA Fluid Dynamics Conference (pp. 602-613). (Collection of Technical Papers - 37th AIAA Fluid Dynamics Conference; Vol. 1).