Dietz, G. and Mählmann, S. and Hein, S. (1999) Entropy-Layer Instabilities in Plane Supersonic Flow. In: New Results in Numerical and Experimental Fluid Mechanics II, 72, pp. 108-115. Vieweg. AG STAB Symposium, Berlin, 10.-12. November 1998. ISBN 3-528-03122-0.
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Abstract
Entropy-layer instabilities in the supersonic flow over a blunt flat plate are investigated. Two types of entropy-layer instabilities are identified with the linear, local, parallel stability theory. The most amplified mode is a two-dimensional one. In order to validate the numerical findings experiments were carried out: The computed steady, laminar mean-flow data agree with experimentally obtained mass-flow and Pitot-pressure distributions. The wall-normal distribution of the mass-flow eigenfunction of the most amplified entropy-layer instability is found in hot-wire data. The streamwise wave number and the wall-normal phase distribution of the numerically obtained density eigenfunctions agree with a Schlieren picture
Item URL in elib: | https://elib.dlr.de/13656/ | ||||||||||||
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Document Type: | Conference or Workshop Item (Paper) | ||||||||||||
Additional Information: | LIDO-Berichtsjahr=2000, | ||||||||||||
Title: | Entropy-Layer Instabilities in Plane Supersonic Flow | ||||||||||||
Authors: |
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Date: | 1999 | ||||||||||||
Journal or Publication Title: | New Results in Numerical and Experimental Fluid Mechanics II | ||||||||||||
Open Access: | No | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | No | ||||||||||||
In ISI Web of Science: | No | ||||||||||||
Volume: | 72 | ||||||||||||
Page Range: | pp. 108-115 | ||||||||||||
Publisher: | Vieweg | ||||||||||||
Series Name: | Notes on Numerical Fluid Mechanics | ||||||||||||
ISBN: | 3-528-03122-0 | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | supersonic boundary layer, blunted flat plate, entropy-layer instabilities, NOLOT/PSE, flow visulazation, hot-wire measurements | ||||||||||||
Event Title: | AG STAB Symposium, Berlin, 10.-12. November 1998 | ||||||||||||
Organizer: | TU Berlin | ||||||||||||
HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||
HGF - Program: | Aeronautics | ||||||||||||
HGF - Program Themes: | other | ||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||
DLR - Program: | L ST - Starrflüglertechnologien | ||||||||||||
DLR - Research theme (Project): | UNSPECIFIED | ||||||||||||
Location: | Köln-Porz , Braunschweig , Göttingen | ||||||||||||
Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik | ||||||||||||
Deposited By: | DLR-Beauftragter, elib | ||||||||||||
Deposited On: | 16 Sep 2005 | ||||||||||||
Last Modified: | 14 Jan 2010 20:46 |
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