44 citations · 183 across the 32 of their papers we have counts for
33 papers
Flame Modelling of Premixed Ammonia Combustion in Swirl Burner using LES
LE Quang Tuyen, Nguyen Van Bo, Ma Shengwei +4
The objective of the LES simulation is to investigate how operational parameters affect flame properties in combustion of the premixed NH3/H2/air inside a swirling burner. Key para…
Direct detonation initiation in hydrogen/air mixture: effects of compositional gradient and hotspot condition
Xiongbin Jia, Yong Xu, Hongtao Zheng +1
Two-dimensional simulations are conducted to investigate the direct initiation of cylindrical detonation in hydrogen/air mixtures with detailed chemistry. The effects of hotspot co…
Autoignition of two-phase n-heptane/air mixtures behind an oblique shock: insights into spray oblique detonation initiation
Hongbo Guo, Yong Xu, Ningbo Zhao +1
Autoignition of n-heptane droplet/vapor/air mixtures behind an oblique shock wave are studied, through Eulerian-Lagrangian method and a skeletal chemical mechanism. The effects of…
Modelling particle collisions in moderately dense curtain impacted by an incident shock wave
Pikai Zhang, Huangwei Zhang, Yun Feng Zhang +2
The interactions between an incident shock and moderately dense particle curtain are simulated with the Eulerian-Lagrangian method. A customized solver based on OpenFOAM is extende…
Transmission of hydrogen detonation across a curtain of dilute inert particles
Yong Xu, Pikai Zhang, Qingyang Meng +2
Transmission of hydrogen detonation wave (DW) in an inert particle curtain is simulated using the Eulerian-Lagrangian approach with gas-particle two-way coupling. A detailed chemic…
Structure and dynamics of spray detonation in n-heptane droplet-vapor-air mixtures
Qingyang Meng, Majie Zhao, Yong Xu +2
Spray detonation in n-heptane two-phase mixtures is simulated using Eulerian Lagrangian method. Two-dimensional configuration is considered, and the effects of droplet diameter and…
Spark-ignited kernel dynamics in fine ethanol sprays and their relations with minimum ignition energy
Qiang Li, Huangwei Zhang
Spark ignition of ethanol droplet/vapor/air mixture is studied with a Eulerian-Eulerian method and detailed chemical mechanism. The flame kernel-droplet interaction is quantified w…
Effects of dilute coal char particle suspensions on propagating methane detonation wave
Jingtai Shi, Pikai Zhang, Yong Xu +2
Methane/coal dust hybrid explosion is one of the common hazards in process and mining industries. In this study, methane detonation propagation in dilute coal char particle suspens…
Interactions between a propagating detonation wave and circular water cloud in hydrogen/air mixture
Yong Xu, Huangwei Zhang
Interactions between a propagating hydrogen/air detonation wave and circular water cloud are studied. Eulerian Lagrangian method involving two-way gas-droplet coupling is applied.…
Forced ignition and oscillating flame propagation in fine ethanol sprays
Qiang Li, Huangwei Zhang
The present work investigates forced ignition and oscillating propagation of spray flame in a mixture of fine ethanol droplets and air. Eulerian-Eulerian method with two-way coupli…
Detailed chemistry modelling of rotating detonations with dilute n-heptane sprays and preheated air
Shan Jin, Chao Xu, Hongtao Zheng +1
Utilization of liquid fuels is crucial to enabling commercialization of rotating detonation engines in the near future. In this study, Eulerian-Lagrangian simulations are conducted…
Ignition limit and shock-to-detonation transition mode of n-heptane/air mixture in high-speed wedge flows
Hongbo Guo, Yong Xu, Hongtao Zheng +1
In this work, oblique detonation of n-heptane/air mixture in high-speed wedge flows is simulated by solving the reactive Euler equations with a two-dimensional (2D) configuration.…
Interactions between a propagating detonation wave and water spray cloud in hydrogen/air mixture
Yong Xu, Huangwei Zhang
Inhibition of hydrogen explosion is crucial to realize its wide applications and fine water spray is an ideal mitigant due to numerous advantages. In this work, interactions betwee…
Extinction and re-initiation of methane detonation in dilute coal particle suspensions
Jingtai Shi, Yong Xu, Wanxing Ren +1
In this study, methane detonation propagation in dilute coal particle suspensions is studied based on Eulerian-Lagrangian method. Two-dimensional configuration is considered, and a…
On the evolutions of induction zone structure in wedge-stabilized oblique detonation with water mist flows
Hongbo Guo, Yong Xu, Shuying Li +1
Two-dimensional wedge-stabilized oblique detonations in stoichiometric and fuel-lean H2/O2/Ar mixtures with water mists are studied with Eulerian-Lagrangian method. The effects of…
Pulsating propagation and extinction of hydrogen detonations in ultrafine water sprays
Yong Xu, Huangwei Zhang
The Eulerian-Lagrangian method is applied to simulate pulsating propagation and extinction of stoichiometric hydrogen/oxygen/argon detonations in ultrafine water sprays. Three deto…
Critical condition and transient evolution of methane detonation extinction by fine water droplet curtains
Jingtai Shia, Yong Xu, Wanxing Ren +1
Two-dimensional numerical simulations with Eulerian-Lagrangian method and detailed chemical mechanism are conducted to study the methane detonation propagation across a water curta…
Rotating detonation combustion with in-situ evaporating bi-disperse n-heptane sprays
Shan Jin, Huangwei Zhang, Ningbo Zhao +1
Eulerian-Lagrangian simulations are conducted for two-dimensional Rotating Detonative Combustion (RDC) fueled by bi-disperse n-heptane sprays without any fuel pre-vaporization. Par…
Effects of wave interaction on ignition and deflagration-to-detonation transition in ethylene/air mixtures behind a reflected shock
Zhiwei Huang, Huangwei Zhang
Dynamics of ethylene autoignition and Deflagration-to-Detonation Transition (DDT) in a one-dimensional shock tube are numerically investigated using a skeletal chemistry including…
Large eddy simulation of a supersonic lifted hydrogen flame with sparse-Lagrangian multiple mapping conditioning approach
Zhiwei Huang, Matthew J. Cleary, Zhuyin Ren +1
The Multiple Mapping Conditioning / Large Eddy Simulation (MMC-LES) approach is used to simulate a supersonic lifted hydrogen jet flame, which features shock-induced autoignition,…
Reaction front development from ignition spots in n-heptane/air mixtures: low-temperature chemistry effects induced by ultrafine water droplet evaporation
Zhou Yu, Huangwei Zhang
Effects of low-temperature chemistry induced by ultrafine water droplet evaporation on reaction front development from an ignition spot with temperature gradient are studied in thi…
Forced ignition of laminar premixed spherical flames in evaporating fuel droplet mists
Qiang Li, Huangwei Zhang
This study aims to build a theoretical model to describe the ignition process of spherical spray flame laden with fuel droplets under overall fuel-lean condition. Two characteristi…
On the evolution of fuel droplet evaporation zone and its interaction with the flame front in ignition of spray flames
Qiang Li, Chang Shu, Huangwei Zhang
Evolution of fuel droplet evaporation zone and its interaction with the propagating flame front are studied in this work. A general theory is developed to describe the evolutions o…
Large eddy simulation of a supersonic lifted hydrogen flame with perfectly stirred reactor model
Majie Zhao, Zhi X. Chen, Huangwei Zhang +1
Large Eddy Simulation with a Perfectly Stirred Reactor model (LES-PSR) is developed to simulate supersonic combustion with high-enthalpy flow conditions. The PSR model considers th…