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Multiphase Rotating Detonation Engine
Volume 4A: Combustion, Fuels, and Emissions, 2020Abstract The first experimental evidence of a solid-gas multiphase rotating detonation engine. Coal particles, carbon black with a volatility of 1% and a carbon concentration of 99%, were detonated successfully over many operational parameters.
Ian Dunn, Kareem Ahmed
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Hollow Rotating Detonation Combustor
54th AIAA Aerospace Sciences Meeting, 2016A continuous, azimuthally rotating, detonation wave propagating between the confines of a narrow annulus has been the essence of the Rotating Detonation Combustor (RDC) mechanics, till date. This research, however, focuses on the incipient RDC concept that utilizes a hollow combustor for the sustained rotating detonation, instead of the conventional ...
Vijay Anand +2 more
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Fundamentals of rotating detonations
Shock Waves, 2009A rotating detonation propagating at nearly Chapman–Jouguet velocity is numerically stabilized on a two-dimensional simple chemistry flow model. Under purely axial injection of a combustible mixture from the head end of a toroidal section of coaxial cylinders, the rotating detonation is proven to give no average angular momentum at any cross section ...
Manabu Hishida +2 more
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Rotating Detonation Engine Operation
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, 2012A Rotating Detonation Engine engineered and manufactured by Pratt and Whitney Seattle Aerosciences Center was loaned to the Air Force Research Laboratory at WrightPatterson Air Force Base for further testing and development. The engine was originally designed for ethylene and oxygen, but was altered in order to use hydrogen and air.
James Suchocki +5 more
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Supersonic driven detonation dynamics for rotating detonation engines
International Journal of Hydrogen Energy, 2019Abstract In this paper we present the first exploration of detonation wave propagation dynamics in premixed supersonic flows using a novel rotating detonation engine (RDE) configuration. An RDE with a coupled linear extension, referred to as ρDE, is used to divide detonations traveling radially in the RDE into linearly propagating waves. A tangential
Jonathan Sosa +5 more
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Rotating Detonations and Spinning Detonations: Similarities and Differences
AIAA Journal, 2018Rotating Detonation Combustors are studied with increasing interest worldwide, and are seen as the most promising of the available pressure gain (stagnation) combustion concepts.
Vijay Anand, Ephraim Gutmark
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Investigations on rotating detonation engines
AIP Conference Proceedings, 2020In this paper we would discuss the possible other methods of propulsion system i.e. detonation wave engines. After some extensive research and experiments in the initial proceedings of the combustion system the researchers have concluded that there is a significant rise in the pressure which in turn increases the overall efficiency in comparison to ...
Lakshmi Sumedha Appalla +2 more
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Longitudinal pulsed detonation instability in a rotating detonation combustor
Experimental Thermal and Fluid Science, 2016Abstract The peculiar phenomenon of longitudinal pulsed detonation (LPD) in a rotating detonation combustor (RDC) is studied using hydrogen–air mixtures, by utilizing: (i) two air injection schemes having different inlet areas, and (ii) a convergent nozzle assembly with different spacers that affixes to the RDC exit.
Vijay Anand +3 more
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Turbulent Detonation Transition in a Linearized Rotating Detonation Engine
2018 AIAA Aerospace Sciences Meeting, 2018An experimental investigation to characterize flame and detonation propagation dynamics within a Rotating Detonation Engine (RDE) using a hydrogen air mixture is conducted. Using a transition that directs flow from an RDE to a linear channel, the fast propagating flame of interest can be easily observed and probed.
Chambers, Jessica M. +4 more
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Coexistence of detonation with deflagration in rotating detonation engines
International Journal of Hydrogen Energy, 2016Abstract Rotating detonation engines of high thermal efficiency and specific impulse have been studied a lot. However, rotating detonation waves lead to uneven flow field, local high temperature and high pressure, tending to damage the combustor.
Yuhui Wang, Jianping Wang
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