Control of a laminar separating boundary layer by induced stationary perturbations.
Boiko, Andrey V. and Dovgal, Alexander V. and Hein, Stefan (2006) Control of a laminar separating boundary layer by induced stationary perturbations. EUROPEAN JOURNAL OF MECHANICS - B/FLUIDS, 27 (4), pp. 466-476. Elsevier B.V.. ISSN 0997-7546.
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Official URL: http://www.sciencedirect.com/science/journal/09977546
Wind-tunnel data on stationary streaky structures developing in a laminar flow behind a backward-facing step on a flat plate are presented. The streaks were generated in a controlled manner by a row of three-dimensional surface humps placed periodically in the span-wise direction close to the separation line. The mean flow distortion of the separation region created in this way was documented by hot-wire measurements. Details of the evolution of the stationary perturbations in the separation region as well as their effect upon the oscillatory flow component, which are of interest due to elaboration of prospective methods for control of low-speed aerodynamics, are elucidated.
|Title:||Control of a laminar separating boundary layer by induced stationary perturbations.|
|Journal or Publication Title:||EUROPEAN JOURNAL OF MECHANICS - B/FLUIDS|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 466-476|
|Keywords:||laminar flow separation, separation control, hydrodynamic instability|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flight Physics|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Helicopters|
|Deposited By:||Dr.-Ing. Stefan Hein|
|Deposited On:||03 Jun 2008|
|Last Modified:||14 Jan 2010 23:12|
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