Hostname: page-component-7f64f4797f-zzvtc Total loading time: 0 Render date: 2025-11-04T09:36:42.666Z Has data issue: false hasContentIssue false
  • English
  • Français

On reduction of turbulent wall friction through spanwise wall oscillations

Published online by Cambridge University Press:  25 March 1999

M. R. DHANAK  and
C. SI
M. R. DHANAK
Affiliation:
Department of Ocean Engineering, Florida Atlantic University, Boca Raton, FL 33431, USA
C. SI
Affiliation:
Department of Ocean Engineering, Florida Atlantic University, Boca Raton, FL 33431, USA
Get access Rights & Permissions [Opens in a new window]

Abstract

A model for turbulent skin friction, proposed by Orlandi & Jimenez, involving consideration of quasi-streamwise vortices in the cross-stream plane, is used to study the effect on the skin friction of oscillating the surface beneath the boundary layer in the spanwise direction. Using an exact solution of the Navier–Stokes equations, it is shown that the interaction between evolving, axially stretched, streamwise vortices and a modified Stokes layer on the oscillating surface beneath, leads to reduction in the skin friction, the Reynolds stress and the rate of production of kinetic energy, consistent with predictions based on experiments and direct numerical simulations.

Information

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 383 , 25 March 1999 , pp. 175 - 195
Copyright
© 1999 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable