[HTML][HTML] Deflagration and detonation induced by shock wave focusing at different Mach numbers

Y Zezhong, J Cheng, B Zhang - Chinese Journal of Aeronautics, 2024 - Elsevier
Shock wave focusing is an effective way to create a hot spot or a high-pressure and high-
temperature region at a certain place, showing its unique usage in detonation initiation …

The influence of wall roughness on detonation limits in hydrogen–oxygen mixture

B Zhang - Combustion and Flame, 2016 - Elsevier
In this study, wall roughness is generated by inserting a Shchelkin spiral with different wire
diameter (δ) and pitch (L s). Roughness is defined as the ratio δ/L s. The effect of tube wall …

The effects of large scale perturbation-generating obstacles on the propagation of detonation filled with methane–oxygen mixture

B Zhang, H Liu - Combustion and Flame, 2017 - Elsevier
Orifice plates with large blockage ratios (BR= 0.691, 0.826, 0.923 and 0.962) are placed in
the entrance of the detonation transmission to investigate the artificially large-scale …

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 …

Theoretical prediction model and experimental investigation of detonation limits in combustible gaseous mixtures

B Zhang, H Liu - Fuel, 2019 - Elsevier
Propagation limits in gaseous detonation are an important problem in industrial chemical
processes due to safety protections and precautions. Propagation limits are also of great …

Isolating the effect of induction length on detonation structure: Hydrogen–oxygen detonation promoted by ozone

J Crane, X Shi, AV Singh, Y Tao, H Wang - Combustion and Flame, 2019 - Elsevier
The effect of ignition promoters on H 2 single bondO 2 detonation structure was evaluated
with one-dimensional ZND calculations and experimental detonation cell measurements …

Sensitizing gaseous detonations for hydrogen/ethylene-air mixtures using ozone and H2O2 as dopants for application in rotating detonation engines

DS Kumar, K Ivin, AV Singh - Proceedings of the Combustion Institute, 2021 - Elsevier
The effect of ozone and hydrogen peroxide as dopants on hydrogen-air and ethylene-air
detonations was investigated with one-dimensional ZND calculations. Also, the effects of …

Hydrogen-air, ethylene-air, and methane-air continuous rotating detonation in the hollow chamber

HY Peng, WD Liu, SJ Liu, HL Zhang, LX Jiang - Energy, 2020 - Elsevier
A series of hydrogen-air, ethylene-air, and methane-air continuous rotating detonation
(CRD) tests are performed in the hollow chamber with the variations on nozzle contraction …

Investigation on the detonation propagation limit criterion for methane-oxygen mixtures in tubes with different scales

B Zhang, H Liu, B Yan - Fuel, 2019 - Elsevier
The detonation propagation limits of CH 4-O 2 mixtures (φ= 0.25–2) in a macro-channel (D=
36 mm) and in micro-channels with heights of 2 mm, 4.5 mm and 7 mm were studied. The …

Mach reflection of detonation waves with velocity deficits

ZY Zhou, HH Ma, LQ Wang - Combustion and Flame, 2024 - Elsevier
Velocity deficits, which exist universally in the process of detonation propagation, were not
considered in the problem of detonation Mach reflection in previous studies. Thus, an …