Results 1 to 10 of about 64 (61)

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. A rectangular-shaped hole-type fuel injector (RHFI) and slit-type fuel injector (SFI) were designed and compared ...
Holak Kim   +2 more
exaly   +3 more sources

Computational modeling of dynamic injector response in a Rotating Detonation Engine (RDE)

open access: yesApplications in Energy and Combustion Science
Rotating Detonation Engines (RDEs) are a form of pressure gain combustion (PGC), offering a promising approach to increase the thermodynamic efficiency of a gas turbine combustor by utilizing a detonation-driven combustion process. In most RDEs, fuel and oxidizer are discretely injected from separate plenums.
Joseph Meadows, Piyush Raj
exaly   +3 more sources

Predictive Numerical Analysis on the Mixing Characteristics in a Rotating Detonation Engine (RDE) [PDF]

open access: yesEvergreen, 2021
Detonation potential in rotating detonation engine (RDE) depends on well-mixed fuel and oxidizer in the annulus. A numerical study was carried out to analyze hydrogen (H2) – oxygen (O2) mixing in RDE prior to the detonation. A validation was effectively achieved by comparing the expected detonation criteria with the reported experimental results where ...
Rahman, Mohammad Nurizat   +4 more
openaire   +2 more sources

Experimental Proof of Concept of a Noncircular Rotating Detonation Engine (RDE) for Propulsion Applications

open access: yesAerospace, 2022
A noncircular engine cross-section could provide great flexibility in the integration of propulsion into the airframe. In this work, a tri-arc RDE was constructed and tested as an example of noncircular cross-sectioned RDE. The operational characteristics of detonation wave propagation and thrust performance were investigated and compared with an ...
Jae-Hyuk Lee   +4 more
openaire   +2 more sources

Predictive Numerical Analysis on the Fuel Homogeneity in a Rotating Detonation Engine (RDE) Implementing Radially-Entered Fuel Injection Scheme

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract The potential for a continuous detonation wave in rotating detonation engine (RDE) hugely rely on the homogenous fuel-air mixture within annular chamber. Using that motivation, a comprehensive numerical study on the non-reacting flow field was carried out to investigate the mixing of hydrogen (H2)and oxygen (O2) in a RDE ...
M N Rahman, M A Wahid, M F Mohd Yasin
openaire   +1 more source

MHz-rate Laser Spectroscopic Instrument for Reacting Flow Composition and Temperature Measurements inside Rotating Detonation Engines (RDEs)

open access: yes2018 Joint Propulsion Conference, 2018
Rotating Detonation Engines (RDEs) is a concept with the potential of realizing a pressure gain architecture that will lead to improved efficiency in power generation and propulsion systems. However, there are many questions on stable operation and effectively recovering flow such that it may be used in power production.
Kyle Thurmond   +7 more
openaire   +3 more sources

Learning dominant physical processes with data-driven balance models. [PDF]

open access: yesNat Commun, 2021
Callaham JL   +4 more
europepmc   +1 more source

CDEQ V5.0 Harpoon Equation Global Stability Control and Extreme-Environment Hand-Crank Startup Mechanism for Rotating Detonation Engine RDE 旋转爆震发动机全局稳定控制与极端环境手摇启动机制

open access: yes
CDEQ V5.0 Harpoon Equation: Global Stability Control and Extreme-Environment Hand-Crank Startup Mechanism for Rotating Detonation Engine 旋转爆震发动机全局稳定控制与极端环境手摇启动机制 Trusted Timestamp (This Work): TSA-01-20260224412940002   Foundational Topology: PCTT CW Core Constraints: CENHE LEX | Global Verification: GCVT 10   Author: Jiang Wenjia (Shenzhen ...
openaire   +2 more sources

Demonstrated Low Pressure Loss Inlet and Low Equivalence Ratio Operation of a Rotating Detonation Engine (RDE) for Power Generation

open access: yesAIAA Science and Technology Forum (SciTech 2020), Orlando FL, Jan 8, 2020, 2020
Alexander Baratta, Jeffrey Stout
openaire   +2 more sources

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