Results 261 to 270 of about 627,886 (336)

Effects of film cooling injection inclination angle on cooling performance in rotating detonation combustors

The Physics of Fluids
Film cooling is a promising thermal management solution for rotating detonation combustors (RDCs) maturing toward long-duration engineering implementation.
D. Shen, Miao Cheng, Guangyao Rong, Zhaohua Sheng, Yunzhen Zhang, Jianping Wang   +5 more
semanticscholar   +1 more source

Fundamental Study of Detonation Structure in Rotating Detonation Engine

2020
The maturation of Brayton-cycle engines has led to a plateau in combustor performance where improvements between successive generations are slight. Detonation-based heat addition, in place of deflagrations, may offer an opportunity to radically improve the performance of both air-breathing and rocket systems.
openaire   +2 more sources

Change in Continuous Detonation Wave Propagation Mode from Rotating Detonation to Standing Detonation

Chinese Physics Letters, 2010
We perform a three-dimensional numerical simulation based on a one-step chemical reaction model to investigate changes in the mode of H2-Air detonation wave propagation from rotating detonation wave (RDW) mode to standing detonation wave mode. The physical characteristics of an RDW with injection velocity of 500m/s are analyzed to investigate the ...
Shao Ye-Tao, Wang Jian-Ping
openaire   +1 more source

Numerical investigation of detonation initiation in a modeled rotating detonation engine

The Physics of Fluids
In experimental studies, single-wave mode and two counter-rotating wave mode are often observed in rotating detonation combustors. To investigate the mechanism behind different propagation modes, high-resolution numerical simulations of two-dimensional ...
Chao Han, Jing Bian, Baolu Shi, Cheng Tian, Majie Zhao   +4 more
semanticscholar   +1 more source

Numerical investigation on detonation velocity in rotating detonation engine chamber

Proceedings of the Combustion Institute, 2017
Abstract A two-dimensional investigation is conducted to clarify the velocity decrease mechanism of a detonation wave propagating within a rotating detonation engine (RDE) chamber, focusing on the effect of injection conditions of the fuel and oxidizer.
Jumpei Fujii, Yoshiki Kumazawa, Akiko Matsuo, Soma Nakagami, Ken Matsuoka, Jiro Kasahara   +5 more
openaire   +1 more source

Effects of slot throat width on two-phase n-decane/air rotating detonation engine

The Physics of Fluids
In this paper, three-dimensional numerical simulations are conducted for rotating detonation combustion fueled by two-phase n-decane/air mixtures. The converging–diverging inlet configuration with various slot throat widths (0.5, 1.0, 1.5, and 2.0 mm) is
Xiaofeng Shao, Ningbo Zhao, Wei Zhang, Hongtao Zheng   +3 more
semanticscholar   +1 more source

Spinning pulsed detonation in rotating detonation engine

Aerospace Science and Technology, 2022
Dawen Shen, John Z. Ma, Zhaohua Sheng, Guangyao Rong, Kevin Wu, Yunzhen Zhang, Jianping Wang   +6 more
openaire   +1 more source

Shock interactions and re-initiation mechanism of liquid ethanol-fueled rotating detonation wave

The Physics of Fluids
We present a numerical simulation of a two-phase rotating detonation fueled by liquid ethanol and pre-heated air in a two-dimensional rotating detonation combustor.
Jianghong Li, Songbai Yao, Jingtian Yu, Jingzhe Li, Ying Lei, Wenwu Zhang   +5 more
semanticscholar   +1 more source

INVESTIGATION OF ROTATING DETONATION PHYSICS AND DESIGN OF A MIXER FOR A ROTATING DETONATION ENGINE

2023
A fast model of a Rotating Detonation Combustor (RDC) is developed based on the Method of Characteristics (MOC). The model provides a CFD-like solution of an unwrapped 2D RDC flow field in under 10 seconds with similar fidelity as 2D Reacting URANS simulations.
openaire   +1 more source

Wave mode observation of hydrogen/oxygen driven rotating detonations in the hollow and annular rotating detonation rocket engine

The Physics of Fluids
The rotating detonation rocket engine (RDRE) fueled by hydrogen/oxygen propellant represents a promising propulsion technology due to its high thermodynamic efficiency and propellant superior specific impulse.
Yu-wen Wu, Jiaxin Guo, Gao Xu, Chenwei Ding, Qun Li, Tang Jiang, Chunsheng Weng   +6 more
semanticscholar   +1 more source