Feasibility studies of a rotating detonation wave rocket motor.

Cullen, R. E.; Nicholls, James A.; Ragland, Kenneth W.

doi:10.2514/3.28557

Cited by 182 publications

(27 citation statements)

References 6 publications

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“…Additional early investigations were conducted by investigators at the University of Michigan. [31][32][33] Special mention should be made of the subsequent, prolific effort of Bykovskii and coworkers at LIH toward RDE development. 34 This single reference does not do justice to the comprehensive studies of different geometries involving centrifugal, centripetal or "spinning" waves, d gaseous and liquid fuels, air or oxygen as an oxidizer, ways of introducing fuel and oxidizer, and various other parameters that showed the versatility of RDEs and their potential for propulsion and power-production devices.…”

Section: Introductionmentioning

confidence: 99%

Rotating Detonation Wave Propulsion: Experimental Challenges, Modeling, and Engine Concepts

Braun

Massa³

et al. 2014

Journal of Propulsion and Power

477

117

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Rotating detonation engines (RDEs), also known as continuous detonation engines, have gained much worldwide interest lately. Such engines have huge potential benefits arising from their simplicity of design and manufacture, lack of moving parts, high thermodynamic efficiency and high rate of energy conversion that may be even more superior than pulse detonation engines, themselves the subject of great interest. However, due to the novelty of the concept, substantial work remains to demonstrate feasibility and bring the RDE to reality. An assessment of the challenges, ranging from understanding basic physics through utilizing rotating detonations in aerospace platforms, is provided.

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Section: Introductionmentioning

confidence: 99%

Rotating Detonation Wave Propulsion: Experimental Challenges, Modeling, and Engine Concepts

Braun

Massa³

et al. 2014

Journal of Propulsion and Power

477

117

View full text Add to dashboard Cite

show abstract

“…By virtue of the narrow annular gap, the gradients in density and pressure caused by the heat release self-steepen, eventually forming shocks strong enough to auto-ignite the propellant. These combustion-driven shock waves, now detonations, continue to process propellant so long as there is sufficiently fast refill and mixing of propellant within the period of the traveling detonation wave to offset inhibiting phenomena [10,11]. In this manner, the steady operation of the RDE is the point at which the rates of gain depletion (combustion), gain recovery (injection), and dissipation balance.…”

Section: Introductionmentioning

confidence: 99%

Mode-locked rotating detonation waves: Experiments and a model equation

et al. 2020

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Direct observation of a Rotating Detonation Engine combustion chamber has enabled the extraction of the kinematics of its detonation waves. These records exhibit a rich set of instabilities and bifurcations arising from the interaction of coherent wave fronts and global gain dynamics. We develop a model of the observed dynamics by recasting the Majda detonation analog as an autowave. The solution fronts become attractors of the engine; i.e., mode-locked rotating detonation waves. We find that denotative energy release competes with dissipation and gain recovery to produce the observed dynamics and a bifurcation structure common to driven-dissipative systems, such as mode-locked lasers.

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“…Sometime later, Adamson et al [4,5] researched the possibility of harnessing rotating detonation to improve the efficiency of rocket propulsion while Voitsekhovskii [6] successfully achieved spinning detonation in the laboratory. However, after an initial boom in research, progress then ceased as no successfully operating system came to fruition [7]. Interest in the rotating detonation engine (RDE) revived at the beginning of the 21st century when research resumed almost at the same time in Russia [8], Poland [9][10][11][12], and France [13] and later in Japan [14], the USA [15], Singapore [16], China [17], and other countries [18].…”

Section: Introductionmentioning

confidence: 99%

Influence of Gaseous Hydrogen Addition on Initiation of Rotating Detonation in Liquid Fuel–Air Mixtures

et al. 2020

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Hydrogen is the most common molecule in the universe. It is an excellent fuel for thermal engines: piston, turbojet, rocket, and, going forward, in thermonuclear power plants. Hydrogen is currently used across a range of industrial applications including propulsion systems, e.g., cars and rockets. One obstacle to expanding hydrogen use, especially in the transportation sector, is its low density. This paper explores hydrogen as an addition to liquid fuel in the detonation chamber to generate thermal energy for potential use in transportation and generation of electrical energy. Experiments with liquid kerosene, hexane, and ethanol with the addition of gaseous hydrogen were conducted in a modern rotating detonation chamber. Detonation combustion delivers greater thermal efficiency and reduced NOx emission. Since detonation propagates about three orders of magnitude faster than deflagration, the injection, evaporation, and mixing with air must be almost instantaneous. Hydrogen addition helps initiate the detonation process and sustain continuous work of the chamber. The presented work proves that the addition of gaseous hydrogen to a liquid fuel–air mixture is well suited to the rotating detonation process, making combustion more effective and environmentally friendly.

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Feasibility studies of a rotating detonation wave rocket motor.

Cited by 182 publications

References 6 publications

Rotating Detonation Wave Propulsion: Experimental Challenges, Modeling, and Engine Concepts

Rotating Detonation Wave Propulsion: Experimental Challenges, Modeling, and Engine Concepts

Mode-locked rotating detonation waves: Experiments and a model equation

Influence of Gaseous Hydrogen Addition on Initiation of Rotating Detonation in Liquid Fuel–Air Mixtures

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