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Experimental and Numerical Modeling of the Bow Shock Interaction with Pulse-Heated Air Bubbles

Schülein, Erich and Zheltovodov, Alexander A. and Pimonov, Evgeny A. and Loginov, Maxim S. (2010) Experimental and Numerical Modeling of the Bow Shock Interaction with Pulse-Heated Air Bubbles. International Journal of Aerospace Innovations, Vol. 2 (3), pp. 165-188. Sage Publications. doi: 10.1260/1757-2258.2.3.165. ISSN 1757-2258.

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The influence of various parameters characterizing the single- and double-pulse energy deposition (ED) upstream of a blunt body (distance between the deposition point and the body, amount of the energy and time delay between the pulses) on the topology of the supersonic flow at Mach 2 is studied experimentally and numerically. The obtained pressure-time diagram at the upstream stagnation point of the body as well as some significant topological properties of the bow-shock / heated-bubble interaction, like shock deformation and reflection, as well as the evolution of the heated bubble into the vortex ring downstream, are analyzed as resulting from the shock-decelerated spherical light-gas inhomogeneity. The evolution and topology of the interfering heated bubbles by double-pulse ED show the significance of vorticity generation initiated by blast-waves coming from the neighboring bubbles.

Item URL in elib:https://elib.dlr.de/60425/
Document Type:Article
Title:Experimental and Numerical Modeling of the Bow Shock Interaction with Pulse-Heated Air Bubbles
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Zheltovodov, Alexander A.zhelt (at) itam.nsc.ruUNSPECIFIED
Pimonov, Evgeny A.ITAM NovosibirskUNSPECIFIED
Loginov, Maxim S.ITAM NovosibirskUNSPECIFIED
Date:1 September 2010
Journal or Publication Title:International Journal of Aerospace Innovations
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Volume:Vol. 2
DOI :10.1260/1757-2258.2.3.165
Page Range:pp. 165-188
Publisher:Sage Publications
Keywords:Bow shock wave, Energy deposition, Laser, laser-induced heating, Optical discharge, Experiment, CFD, Wave drag
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:24 Sep 2010 13:04
Last Modified:19 Nov 2021 20:32

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