Analysis of the ignition induced by shock wave focusing equipped with conical and hemispherical reflectors

B Zhang, Y Li, H Liu - Combustion and Flame, 2022 - Elsevier
The interaction of a plane shock wave in air with concave profiles has been used in the past
to understand the nature of shock wave focusing. The current study examines the complex …

Ignition behavior and the onset of quasi-detonation in methane-oxygen using different end wall reflectors

B Zhang, Y Li, H Liu - Aerospace Science and Technology, 2021 - Elsevier
The shock wave focusing technique is beneficial to the development of detonation-based
engines, which can shorten the long run-up distance that is usually required for a …

Numerical study on transition structures of oblique detonations with expansion wave from finite-length cowl

GX Xiang, X Gao, WJ Tang, XZ Jie, X Huang - Physics of Fluids, 2020 - pubs.aip.org
The oblique detonation wave (ODW) triggered by a semi-infinite cowl or wedge has been
widely studied, but the effects of finite-length cowls require further clarification to enhance …

斜爆轰的多波结构及其稳定性研究进展

滕宏辉, 姜宗林 - 力学进展, 2020 - lxjz.cstam.org.cn
摘要斜爆轰是气相爆轰物理的一个重要研究方向, 在航空航天新型动力领域有重要的潜在应用
价值. 作为激波诱导的高速燃烧, 斜爆轰波可以简化为包含能量添加的间断面. 然而 …

Experimental study of detonation limits in methane-oxygen mixtures: Determining tube scale and initial pressure effects

B Zhang, H Liu, B Yan, HD Ng - Fuel, 2020 - Elsevier
In this paper, detonation limits in stoichiometric methane-oxygen mixtures with varying tube
inner diameter and initial mixture pressure were investigated. Detonations in tubes with …

The effect of instability of detonation on the propagation modes near the limits in typical combustible mixtures

B Zhang, H Liu, Y Li - Fuel, 2019 - Elsevier
At the near-limit conditions, the behavior of detonation propagation manifests unstable
modes; those modes are classified into three types, ie, steady mode, fluctuation mode and …

Oblique detonation waves induced by two symmetrical wedges in hydrogen-air mixtures

G Xiang, Y Zhang, X Gao, H Li, X Huang - Fuel, 2021 - Elsevier
An understanding of oblique detonation waves (ODWs) has inherent research value for high-
speed compressible reacting flow and hypersonic propulsion. In this paper, the interactions …

Morphology of oblique detonation waves in a stoichiometric hydrogen–air mixture

H Teng, C Tian, Y Zhang, L Zhou… - Journal of Fluid …, 2021 - cambridge.org
Although the morphology of oblique detonation waves (ODWs) has been widely studied, it
remains impossible to predict the wave systems in the initiation region, which is a critical …

Visualization of ignition modes in methane-based mixture induced by shock wave focusing

Y Li, B Zhang - Combustion and Flame, 2023 - Elsevier
In this study, different ignition modes and detonation initiation due to shock wave focusing
are observed by combining a transient overpressure recording technique and a high-speed …

Formation of stabilized oblique detonation waves in a combustor

Z Zhang, C Wen, W Zhang, Y Liu, Z Jiang - Combustion and Flame, 2021 - Elsevier
Initiation and stabilization of oblique detonation waves (ODWs) are important to the
successful application of oblique detonation engines (ODEs), which, however, have been …