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CFD Analysis of Unstart Characteristics of the HyShot-II Scramjet Configuration in the HEG Shock Tunnel

Karl, Sebastian and Martinez Schramm, Jan and Hannemann, Klaus (2011) CFD Analysis of Unstart Characteristics of the HyShot-II Scramjet Configuration in the HEG Shock Tunnel. 17th AIAA International Space Planes and Hypersonic Systems and Technology Conference, April 2011, San Francisco, USA.

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Official URL: http://www.aiaa.org

Abstract

Ground based testing of the generic HyShot II scramjet configuration was carried out in the High Enthalpy Shock Tunnel Göttingen, HEG, of the German Aerospace Center, DLR, and computational fluid dynamics (CFD) was applied to support the analysis of the experimental results. In the present article, the extension of previous numerical analyses which focused on the HyShot II design condition (equivalence ratio of approximately 0.3) to unsteady flow situations in the combustor is discussed. With increasing fuel equivalence ratio, a transition from steady to unsteady flow was observed experimentally. In the framework of scramjet engine design it is of particular interest to identify and to correctly predict the limiting operating conditions, e.g., engine unstart. Therfore, in conjunction with the test campaign performed in HEG, a parametric CFD study was performed utilizing the DLR TAU code to investigate the onset of unsteady combustor flow. Unsteady Reynolds averaged Navier-Stokes (URANS) computations were performed for off-design equivalence ratios above 0.6.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:CFD Analysis of Unstart Characteristics of the HyShot-II Scramjet Configuration in the HEG Shock Tunnel
Authors:
AuthorsInstitution or Email of Authors
Karl, SebastianUNSPECIFIED
Martinez Schramm, JanUNSPECIFIED
Hannemann, KlausUNSPECIFIED
Date:April 2011
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Conference Proceedings online
Status:Published
Keywords:Scramjet, CFD
Event Title:17th AIAA International Space Planes and Hypersonic Systems and Technology Conference
Event Location:San Francisco, USA
Event Type:international Conference
Event Dates:April 2011
Organizer:AIAA
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 - Raumfahrzeugsysteme - Numerische Verfahren und Simulation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Sebastian Karl
Deposited On:21 Nov 2011 15:31
Last Modified:21 Nov 2011 15:31

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