Journal ArticleDOI
Continuous Spin Detonations
TLDR
In this paper, the results of controlled continuous spin detonation of various fuels in liquid-propellant rocket motors and ramjet combustors are reported, and the flow structure, existence conditions, and basic properties of continuous detonation are considered.Abstract:
Results on controlled continuous spin detonation of various fuels in liquid-propellant rocket motors and ramjet combustors are reported. Schemes of chambers, combustion in transverse detonation waves, and typical photographic records of transverse detonation waves are given. The flow structure, existence conditions, and basic properties of continuous detonation are considered. An analysis of physical, chemical, and geometric parameters determining spin detonation is presented. Results of studying continuous spin detonation of C 2 H 2 + air and H 2 + air mixtures in an annular ducted chamber 30.6 cm in diameter are reported. The range of existence of continuous spin detonation in fuel-air mixtures is determined as a function of the governing parameters. In the case of high-quality mixing, the transverse detonation wave velocity and structure are extremely stable in a wide range of the ratios of propellant components and in the examined range of pressures in the chamber.read more
Citations
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Journal ArticleDOI
Rotating detonation wave propulsion: Experimental challenges, modeling, and engine concepts
TL;DR: In this paper, an assessment of the challenges of understanding basic physics through utilizing rotating detonations in aerospace platforms is provided, ranging from understanding the basic physics of the system to its feasibility.
Journal ArticleDOI
Numerical investigation of the physics of rotating-detonation-engines
TL;DR: In this paper, the role of inlet stagnation pressure and back pressure on the performance of rotating-detonation-engines (RDEs) was investigated and it was found that the detonation wave height and mass flow rate are determined primarily by the stagnation pressure, whereas overall performance is closely tied to pressure ratio.
Journal ArticleDOI
Chemiluminescence imaging of an optically accessible non-premixed rotating detonation engine
Brent A. Rankin,Daniel R. Richardson,Andrew W. Caswell,Andrew Naples,John Hoke,Frederick Schauer +5 more
TL;DR: In this article, the detonations propagating through the annular channel of an optically accessible rotating detonation engine (RDE) operating on hydrogen-air are visualized using OH* chemiluminescence imaging.
Journal ArticleDOI
Rotating detonation combustors and their similarities to rocket instabilities
Vijay Anand,Ephraim Gutmark +1 more
TL;DR: An overview of the research done worldwide to address some of the challenges and questions pertaining to the physics of rotating detonation combustors operation is provided in this paper, where notable parallels are drawn to the phenomena of low and high frequency instabilities in solid and liquid rockets that have been recognized as the most severe hindrance to their operation.
Journal ArticleDOI
Large-scale hydrogen–air continuous detonation combustor
S. M. Frolov,S. M. Frolov,V. S. Aksenov,V. S. Aksenov,V.S. Ivanov,Igor O. Shamshin,Igor O. Shamshin +6 more
TL;DR: In this article, a large-scale continuous detonation combustor (CDC) has been designed, fabricated and tested to study the effect of different design elements on the operation process and CDC propulsion performance.
References
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Journal ArticleDOI
Pulse detonation propulsion : challenges, current status, and future perspective
TL;DR: Current understanding of gas and sprary detonations, thermodynamic grounds for detonation-based propulsion, principles of practical implementation of the detonations-based thermodynamic cycle, and various operational constraints of PDEs are discussed.
Liquid propellant rocket combustion instability
TL;DR: In this paper, the extent of combustion instability problems in liquid propellant rocket engines and recommendations for their solution are discussed, both theoretical and experimental, with emphasis on fundamental principles and relationships between alternative approaches.
Journal ArticleDOI
Continuous Detonation of a Subsonic Flow of a Propellant
F. A. Bykovskii,E. F. Vedernikov +1 more
TL;DR: In this paper, the principal possibility of organizing controlled combustion of a subsonic flow of a propellant in longitudinal pulsed and spin detonation waves is experimentally verified Conditions and reasons for the existence of detonation wave are considered.
Journal ArticleDOI
A Preliminary Study of the Application of Steady-State Detonative Combustion to a Reaction Engine
TL;DR: In this article, a solution of the Laminar boundary layer Equations for a Compressible Couette Flow with Variable Properties, including Dissociation, was presented, and discussed at the NATO-AGARD Colloquium, Palermo, Sicily, March 17-21, 1958.
Journal ArticleDOI
Continuous detonation combustion of fuel-air mixtures
TL;DR: In this article, a continuous detonation combustion of fuel-air mixtures was performed in a disk-shaped chamber with a plane radial eddying flow directed from the periphery to the central outlet opening, a rotating detonation wave in which hydrogen, methane, and liquid fuels (kerosene and diesel fuel) mixed with air were burnt was excited.