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Turbulent boundary layer on a body of revolution with periodic blowing/suction

Turbulent boundary layer on a body of revolution with periodic blowing/suction The effect of periodic blowing/suction on characteristics of a turbulent boundary layer formed on an axisymmetric body of revolution in a nominally gradientless incompressible flow is studied experimentally. The Reynolds number based on the momentum thickness at the location of an annular slot for blowing/suction is 1176. The dimensionless slot width in the wall units is 68. It is demonstrated that blowing/suction aimed at controlling the boundary-layer flow is a fairly effective method for controlling the near-wall turbulence structure and ensures a certain gain in friction drag over the initial configuration (the maximum gain reaches 25–30 %). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Turbulent boundary layer on a body of revolution with periodic blowing/suction

Thermophysics and Aeromechanics , Volume 13 (3) – Sep 1, 2006

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Publisher
Springer Journals
Copyright
Copyright © V.I. Kornilov 2006
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/s0869864306030048
Publisher site
See Article on Publisher Site

Abstract

The effect of periodic blowing/suction on characteristics of a turbulent boundary layer formed on an axisymmetric body of revolution in a nominally gradientless incompressible flow is studied experimentally. The Reynolds number based on the momentum thickness at the location of an annular slot for blowing/suction is 1176. The dimensionless slot width in the wall units is 68. It is demonstrated that blowing/suction aimed at controlling the boundary-layer flow is a fairly effective method for controlling the near-wall turbulence structure and ensures a certain gain in friction drag over the initial configuration (the maximum gain reaches 25–30 %).

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Sep 1, 2006

Keywords: Skin Friction; Turbulent Boundary Layer; Momentum Thickness; Slot Width; Friction Drag

References