Results 31 to 40 of about 1,472 (179)

Optical and thrust measurement of a pulse detonation combustor with a coaxial rotary valve [PDF]

open access: yes, 2012
journal ...
Esumi Motoki   +5 more
core   +1 more source

Review of Recent Developments in Wave Rotor Combustion Technology [PDF]

open access: yes, 2009
For some decades, efforts have been made to exploit nonsteady combustion and gas dynamic phenomenon. The theoretical potential of nonsteady-flowmachines has led to the investigation of various oscillatory flowdevices such as pulse detonation engines ...
Akbari, Pezhman, Nalim, M. Razi
core   +1 more source

Numerical Study on the Two-Phase Detonation Flow Field of Coal Powder-Hydrogen in a Rotating Detonation Engine [PDF]

open access: yesHangkong bingqi
Rotating detonation engines (RDEs) have attracted significant attention in the aerospace field due to their high thermal cycle efficiency. This study explores the characteristics of rotating detonation in gas-solid mixed fuel within an air atmosphere.
Weng Chunsheng, Ni Xiaodong, Xu Han
doaj   +1 more source

Propulsive Performance and Heating Environment of Rotating Detonation Engine with Various Nozzles [PDF]

open access: yes, 2019
Geometric throats are commonly applied to rocket combustors to increase pressure and specific impulse. This paper presents the results from thrust measurements of an ethylene/gas-oxygen rotating detonation engine with various throat geometries in a ...
FUNAKI Ikkoh   +9 more
core   +2 more sources

Design and Study of Swirl Injector of Pulse Detonation Engine [PDF]

open access: yes, 2017
Future Indian Air force and Navy Capabilities indicate the need for a supersonic cruise missile. Therefore, there exists a need for a low cost, light-weight, and efficient means of supersonic propulsion. In this paper my main emphasis on Pulse Detonation
Banga, N. (Navdeep), Kanika, K. (Kanika)
core   +1 more source

Effects of Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines

open access: yes气体物理, 2023
In this study, the operating modes of the rotating detonation engine (RDE) under various inlet conditions were investigated numerically. It was shown that after the sudden reduction of the inlet total pressure, the resulting decrease of the mass flow ...
Song-bai YAO   +2 more
doaj   +1 more source

An alternative architecture of the Humphrey cycle and the effect of fuel type on its efficiency

open access: yesEnergy Science &Engineering, Volume 8, Issue 10, Page 3702-3716, October 2020., 2020
Novel Humphrey cycle architecture with stoichiometric combustor operation. Benchmarking of turbine plenum losses for pressure‐gain combustion cycles. Effect of internal irreversbilities of pressure‐gain combustion on cycle efficiency. Abstract Conventional gas turbines are a very mature technology, and performance improvements are becoming increasingly
Panagiotis Stathopoulos
wiley   +1 more source

Experimental Study on Pulse Detonation Engine with Two‐Phase Inhomogeneous Mixture

open access: yesInternational Journal of Aerospace Engineering, Volume 2020, Issue 1, 2020., 2020
In order to investigate the effects of fuel distribution on the operation of two‐phase pulse detonation engine (PDE), a series of cold flow and multicycle PDE experiments was carried out with 9 mixing schemes. Homogeneity degree with fuel distribution considered in terms of space and time was proposed to quantitatively evaluate the mixing of liquid ...
Jishuang Gong, Hu Ma, Qiaofeng Xie
wiley   +1 more source

Effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave

open access: yesPropulsion and Power Research, 2022
The effect of high-pressure detonation products on fuel injection and propagation characteristics of detonation wave has been investigated in the form of ion voltage by varying the equivalence ratio (ER), air mass flux, and operation duration with ...
Gaoyang Ge   +5 more
doaj   +1 more source

Effects of Chamber Width on H2/Air Rotating Detonations

open access: yesInternational Journal of Aerospace Engineering, Volume 2020, Issue 1, 2020., 2020
To get the effects of chamber width on the H2/Air rotating detonations, several models with different widths have been investigated. By using a one‐step chemical reaction model, one wave is induced in all models. The chamber width has a significant effect on the flow field.
Hailong Zhang   +5 more
wiley   +1 more source

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