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Impact of bypass mass flow on shock motion in pseudo-shock systems

Giglmaier, Marcus and Quaatz, Jan Frederik and Adams, N.A. and Gawehn, Thomas and Gülhan, Ali (2012) Impact of bypass mass flow on shock motion in pseudo-shock systems. 20th International Shock Interaction Symposium, 20. - 24. Aug. 2012, Stockholm, Sweden.

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During previous investigations on pseudo-shock systems we have observed reproducible differences between measurement and simulations for the pressure distribution as well as for size and shape of the pseudo-shock system. A systematic analysis of the deviations leads to the conclusion that small gaps of delta z = O(10^−4) m between quartz-glass side walls and the metal contour of the test section are responsible for this mismatch. The focus of the present study is put on a numerical analysis of the interaction between gap-flow and shock oscillation. Furthermore, the impact of gaps on the occurrence of shock asymmetry is discussed.

Document Type:Conference or Workshop Item (Speech)
Title:Impact of bypass mass flow on shock motion in pseudo-shock systems
AuthorsInstitution or Email of Authors
Giglmaier, MarcusTU München
Quaatz, Jan FrederikTU München
Adams, N.A.TU München
Date:August 2012
Refereed publication:No
In ISI Web of Science:No
Keywords:pseudo-shock system, shock oscillation, shock asymmetry, CFD
Event Title:20th International Shock Interaction Symposium
Event Location:Stockholm, Sweden
Event Type:international Conference
Event Dates:20. - 24. Aug. 2012
Organizer:KTH Royal Institute of Technology
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - Anlagen und Messtechnik (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Über- und Hyperschalltechnologien
Deposited By: Dr.-Ing. Thomas Gawehn
Deposited On:06 Nov 2012 08:44
Last Modified:20 Nov 2012 14:46

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