Open Access
Propulsion System Airframe Integration Issues and Aerodynamic Database Development for the Hyper-X Flight Research Vehicle
TLDR
In this article, the authors provide an overview of the current activities associated with the development of the Hyper-X aerodynamic database, including wind tunnel test activities and parallel CFD analysis efforts.Abstract:
NASA''s Hyper-X Research Vehicle will provide a unique opportunity to obtain data on an operational airframe integrated scramjet propulsion system at true flight conditions. The airframe integrated nature of the scramjet engine with the Hyper-X vehicle results in a strong coupling effect between the propulsion system operation and the airframe''s basic aerodynamic characteristics. Comments on general airframe integrated scramjet propulsion system effects on vehicle aerodynamic performance, stability, and control are provided, followed by examples specific to the Hyper-X research vehicle. An overview is provided of the current activities associated with the development of the Hyper-X aerodynamic database, including wind tunnel test activities and parallel CFD analysis efforts. A brief summary of the Hyper-X aerodynamic characteristics is provided, including the direct and indirect effects of the airframe integrated scramjet propulsion system operation on the basic airframe stability and control characteristics.read more
Citations
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Proceedings ArticleDOI
Flight Dynamics and Control of Air-Breathing Hypersonic Vehicles: Review and New Directions
TL;DR: In this paper, a review of the air-breathing hypersonic flight vehicles (AHFVs) and their control design is presented, which is motivated by the promise of novel techniques in control theory developed in recent years.
Proceedings ArticleDOI
Modeling for Control of a Generic Airbreathing Hypersonic Vehicle
TL;DR: In this article, the authors describe a high-fidelity CFD-based model of a full scale generic airbreathing hypersonic flight vehicle under development at the Multidisciplinary Flight Dynamics and Control Laboratory (MFDCLab) at California State University, Los Angeles (CSULA).
Journal ArticleDOI
Hyper-X Flight Engine Ground Testing for X-43 Flight Risk Reduction
TL;DR: Airframe-integrated scramjet engine testing has been completed at Mach 7 flight conditions in the NASA Langley 8-Foot High Temperature Tunnel and the subsystems that were subjected to flight-like conditions are described and supporting data is presented.
Proceedings ArticleDOI
Hyper-X Flight Engine Ground Testing for X-43 Flight Risk Reduction
TL;DR: In this paper, the Hyper-X Flight Engine, a duplicate Mach 7 X-43 scramjet engine, was mounted on an airframe structure that duplicated the entire three-dimensional propulsion flowpath from the vehicle leading edge to the vehicle trailing edge.
Journal ArticleDOI
Scramjet Lift, Thrust and Pitching-Moment Characteristics Measured in a Shock Tunnel
TL;DR: In this article, the authors measured lift, pitching moment, and thrust/drag on a supersonic combustion ramjet using a three-component stress-wave force balance model.
References
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TL;DR: The Langley Hypersonic Facility Complex consists of nine hypersonic, blowdown-to-vacuum wind tunnels that complement one another to provide a range of Mach number from 6 to 22, with Reynolds number from 0.03 to 40 million per foot and, most importantly for blunt configurations, a normal shock density ratio from 4 to 12 as mentioned in this paper.
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Proceedings ArticleDOI
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Proceedings ArticleDOI
NASA''s Dual-Fuel Airbreathing Hypersonic Vehicle Study
L Hunt James,A Eiswirth Edward +1 more
TL;DR: In this article, an understanding of the "figures of merit" and their relationship, the development of sophisticated configuration discipline prediction methods and a systhesis procedure, and the synergistic integration of advanced technologies across the discipline spectrum are discussed.