Results 11 to 20 of about 4,526 (269)

Scale effects on rotating detonation rocket engine operation

open access: yesApplications in Energy and Combustion Science
Rotating detonation rocket engines are propulsive devices employing detonation waves moving circumferentially around an annular channel that consume axially fed propellants.
Tyler Mundt   +2 more
doaj   +2 more sources

Modeling thermodynamic trends of rotating detonation engines [PDF]

open access: yesPhysics of Fluids, 2020
The formation of a number of co- and counter-rotating coherent combustion wave fronts is the hallmark feature of the Rotating Detonation Engine (RDE). The engineering implications of wave topology are not well understood nor quantified, especially with respect to parametric changes in combustor geometry, propellant chemistry, and injection and mixing ...
James Koch, J. Nathan Kutz
openaire   +2 more sources

Nonidealities in Rotating Detonation Engines

open access: yesAnnual Review of Fluid Mechanics, 2023
A rotating detonation engine (RDE) is a realization of pressure-gain combustion, wherein a traveling detonation wave confined in a chamber provides shock-based compression along with chemical heat release. Due to the high wave speeds, such devices can process high mass flow rates in small volumes, leading to compact and unconventional designs.
Venkat Raman   +2 more
openaire   +1 more source

Experimental Investigation of Detonation Propagation Modes and Thrust Performance in a Small Rotating Detonation Engine Using C2H4/O2 Propellant

open access: yesEnergies, 2021
A small rotating detonation engine (RDE) model and the corresponding experimental setup were constructed for the experimental investigation of the detonation propagation characteristics and thrust performance of a circular RDE. Experiments were conducted
Hyung-Seok Han   +2 more
doaj   +1 more source

Comprehensive Performance Analysis for the Rotating Detonation-Based Turboshaft Engine

open access: yesInternational Journal of Aerospace Engineering, 2020
The potential advantages of rotating detonation combustion are gradually approved, and it is becoming a stable and controllable energy conversion way adopted to the propulsion devices or ground-engines. This study focuses on the rotating detonation-based
Zifei Ji   +4 more
doaj   +1 more source

Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters

open access: yesEnergies, 2022
A series of experimental tests were carried out in order to study the propagation characteristics of a liquid kerosene rotating detonation engine (RDE) with different diameters. Distinguished characteristics of spatial and temporal instability were found
Shida Xu   +4 more
doaj   +1 more source

Comparative analysis of alternative fuels in detonation combustion [PDF]

open access: yes, 2016
Detonation combustion prominently exhibits high thermodynamic efficiency which leads to better performance. As compared to the conventionally used isobaric heat addition in a Brayton cycle combustor, detonation uses a novel isochoric Humphrey cycle which
Azami, M. H., Savill, Mark A.
core   +1 more source

A Theoretical Review of Rotating Detonation Engines

open access: yes, 2021
Rotating detonation engines are a novel device for generating thrust from combustion, in a highly efficient, yet mechanically simple form. This chapter presents a detailed literature review of rotating detonation engines. Particular focus is placed on the theoretical aspects and the fundamental operating principles of these engines.
J. Shaw, I   +7 more
openaire   +5 more sources

Influence of Oxygen Content on the Operating Characteristics of a Disk-shaped Rotating Detonation Engine [PDF]

open access: yesJournal of Applied Fluid Mechanics
Rotating detonation engines (RDEs) are an advanced propulsion technology utilizing detonation combustion. RDEs have shown significant potential for substantially enhancing the performance of conventional propulsion systems due to their inherent ...
Z. Xia, H. Ma, B. Sun
doaj   +1 more source

Effects of Injector Configuration on the Detonation Characteristics and Propulsion Performance of Rotating Detonation Engine (RDE)

open access: yesAerospace, 2023
Fuel injection and mixing affect the characteristics of detonation initiation and propagation, as well as the propulsion performance of rotating detonation engine (RDE). A study on the injector is carried out in the present investigation.
In-Hoi Koo   +5 more
doaj   +1 more source

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