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CFD Analysis of Unsteady Combustion Phenomena in the HyShot-II Scramjet Configuration

Karl, Sebastian and Laurence, Stuart and Martinez, Jan and Hannmann, Klaus (2012) CFD Analysis of Unsteady Combustion Phenomena in the HyShot-II Scramjet Configuration. American Institute of Aeronautics and Astronautics. 18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference, 2012-09-24 - 2012-09-28, Tours, France. doi: 10.2514/6.2012-5912.

Full text not available from this repository.

Official URL: http://arc.aiaa.org/doi/book/10.2514/MHYP12


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. Previous numerical analysis was mainly focused on the steady-state design conditions at an equivalence ratio of approximately 0.3. Preliminary computations at large equivalence ratios showed that a change in flow topology corresponding to a transition from supersonic to subsonic combustion occurs. The formation of a subsonic combustion zone is seen to lead to the upstream propagation of an unsteady shock train. This phenomenon is also observed in experimental investigations. 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 0.5.

Item URL in elib:https://elib.dlr.de/78200/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:CFD Analysis of Unsteady Combustion Phenomena in the HyShot-II Scramjet Configuration
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:September 2012
Refereed publication:No
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:No
Publisher:American Institute of Aeronautics and Astronautics
Series Name:Conference Proceedings online
Keywords:CFD, hypersonics, HySHot, HEG, Scramjet, combustion
Event Title:18th AIAA/3AF International Space Planes and Hypersonic Systems and Technologies Conference
Event Location:Tours, France
Event Type:international Conference
Event Start Date:24 September 2012
Event End Date:28 September 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Numerische Verfahren und Simulation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Karl, Dr. Sebastian
Deposited On:26 Nov 2012 13:44
Last Modified:24 Apr 2024 19:44

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