University of Illinois Urbana-Champaign

On turbulent boundary layer flow over moving wavy wall

Riahi, Daniel N.

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https://hdl.handle.net/2142/112586

Description

Title
On turbulent boundary layer flow over moving wavy wall
Author(s)
Riahi, Daniel N.
Issue Date
1998-03
Keyword(s)
  • Moving Wavy Wall
  • Boundary Layer Flow
Abstract
Analysis and results are presented for a model of a turbulent boundary layer flow over a moving wavy wall which varies both in time and space. Weakly nonlinear approach and direct resonance theory are used to determine the leading order solution for the induced mean flow due to the small amplitude waves superimposed on the mean and fluctuating components of turbulence. It is found that near wall streamwise vortices can be originated and be controlled by the moving wavy wall. In addition, mean turbulent flow includes a secondary component which is generated by the moving wavy wall. The spanwise wavelength of the detected counter-rotating longitudinal vortices is found to be half that due to the wavy wall for sufficiently large time.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 880
  • 1998-6006
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/112586
Copyright and License Information
Copyright 1998 Board of Trustees of the University of Illinois

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Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.