Experimental research on the rotating detonation in gaseous fuels–oxygen mixtures
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In this paper, an experimental study on rotating detonation in a rocket engine is presented, where a model of a simple engine was designed, built, and tested, and the model of the engine was connected to the dump tank.Abstract:
An experimental study on rotating detonation is presented in this paper. The study was focused on the possibility of using rotating detonation in a rocket engine. The research was divided into two parts: the first part was devoted to obtaining the initiation of rotating detonation in fuel–oxygen mixture; the second was aimed at determination of the range of propagation stability as a function of chamber pressure, composition, and geometry. Additionally, thrust and specific impulse were determined in the latter stage. In the paper, only rich mixture is described, because using such a composition in rocket combustion chambers maximizes the specific impulse and thrust. In the experiments, two kinds of geometry were examined: cylindrical and cylindrical-conic, the latter can be simulated by a simple aerospike nozzle. Methane, ethane, and propane were used as fuel. The pressure–time courses in the manifolds and in the chamber are presented. The thrust–time profile and detonation velocity calculated from measured pressure peaks are shown. To confirm the performance of a rocket engine with rotating detonation as a high energy gas generator, a model of a simple engine was designed, built, and tested. In the tests, the model of the engine was connected to the dump tank. This solution enables different environmental conditions from a range of flight from 16 km altitude to sea level to be simulated. The obtained specific impulse for pressure in the chamber of max. 1.2 bar and a small nozzle expansion ratio of about 3.5 was close to 1,500 m/s.read more
Citations
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Proceedings ArticleDOI
Research and development of rotating detonation engine system for the sounding rocket flight experiment S520-31
Jiro Kasahara,Akira Kawasaki,Ken Matsuoka,Akiko Matsuo,Ikkoh Funaki,Daisuke Nakata,Masaharu Uchiumi +6 more
TL;DR: In this paper, a rotating detonation engine (RDE) is used to accelerate a combustion wave propagating at supersonic speed (2∼3 km/s) in a combustible mixture.
Proceedings ArticleDOI
Development and Testing of a High-Pressure Rotating Detonation Engine for Rocket Applications
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TL;DR: In this article, a high speed camera was used to visualize the wave propagation through a narrow tube and analyzed the attenuation with a simplified method of characteristics, and confirmed the effect of diameter normalized by cell size d/ on attenuation phenomena.
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Symbiosis of deflagration and detonation in one jet system – A hybrid detonation engine
TL;DR: In this article , a model of a hybrid detonation engine has been developed and experimentally tested, which consists of two autonomous (independent of each other) jet plants: a rotating detonation module (RDM) and a well-known turbojet engine.
Book ChapterDOI
A State of Art Review on Thermodynamics Performance Analysis in Pulse Detonation Combustor
TL;DR: In this paper , a review study on detonation combustion process, historical overview on chemical kinetics, calorimetric and entropy transport, energy and exergy analysis and factor effecting on deflagration to detonation transition with recommendable future research.
References
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Computer Program for Calculation of Complex Chemical Equilibrium Compositions and Applications II. Users Manual and Program Description. 2; Users Manual and Program Description
Bonnie J. McBride,Sanford Gordon +1 more
Computer Program for Calculation of Complex Chemical Equilibrium Compositions and Applications II. Users Manual and Program Description
Bonnie J. McBride,Sanford Gordon +1 more
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Review of Propulsion Applications of Detonation Waves
TL;DR: In this article, the advantages of the detonation cycle over the constant pressure combustion cycle, typical of conventional propulsion engines, are discussed, and the impact of the early work on these recent developments and some of the outstanding issues are also discussed.
Journal ArticleDOI
Fundamentals of rotating detonations
TL;DR: In this article, a rotating detonation propagating at nearly Chapman-Jouguet velocity is numerically stabilized on a two-dimensional simple chemistry flow model, giving an axial flow.