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Potential of localized flow heating for wave drag reduction

Schülein, Erich and Bornhöft, Erik (2012) Potential of localized flow heating for wave drag reduction. In: 28th International Symposium on Shock Waves Shock Waves , 1. Springer Verlag, Heidelberg New York Dordrecht London. pp. 615-621. ISBN 978-3-642-25687-5.

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Official URL: http://link.springer.com/chapter/10.1007%2F978-3-642-25688-2_93


Effects of steady energy addition (EA) into the Mach 3 supersonic flow upstream of conically-nosed and spherically-blunted bodies were investigated in this study numerically and experimentally. Low-voltage DC-arc discharge was applied to explore energy addition effects in the Ludwieg-Tube Facility by means of drag force measurements and shadowgraph flow visualizations. Numerical simulations were performed by solving the Reynolds-averaged Navier-Stokes equations with the DLR-TAU-Code. Numerical and experimental results demonstrate in good agreement that the optimal power effectiveness appears at a heating power just enough to induce a full-scale recirculation bubble ahead of the blunt body. They reveal that at a higher flow density the effectiveness of EA becomes larger as long as the heating ratio remains over-critical.

Item URL in elib:https://elib.dlr.de/72274/
Document Type:Contribution to a Collection
Additional Information:Online ISBN: 978-3-642-25688-2, Part VIII
Title:Potential of localized flow heating for wave drag reduction
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schülein, Ericherich.schuelein (at) dlr.deUNSPECIFIED
Journal or Publication Title:28th International Symposium on Shock Waves
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:No
DOI :10.1007/978-3-642-25688-2_93
Page Range:pp. 615-621
Kontis, KonstantinosUNSPECIFIED
Publisher:Springer Verlag, Heidelberg New York Dordrecht London
Series Name:Shock Waves
Keywords:Flow control, shock wave, experiment, CFD, DC-arc
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Schülein, Dr.rer.nat. Erich
Deposited On:26 Nov 2012 12:37
Last Modified:01 Apr 2015 10:01

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