Search Results - "Ong, Jiun Cai"

An investigation on early evolution of soot in n-dodecane spray combustion using large eddy simulation by Zhang, Min, Ong, Jiun Cai, Pang, Kar Mun, Bai, Xue-Song, Walther, Jens Honore

“…•Transient evolution of soot mass is captured using LES.•Underlying mechanisms behind the formation of soot spike are proposed.•Before QSS, LES predicts a…”
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CFD analysis of combustion and emission formation using URANS and LES under large two-stroke marine engine-like conditions by Nemati, Arash, Ong, Jiun Cai, Walther, Jens Honoré

“…In this paper, the main aim is to examine the performance of turbulence models to shed light on the effect of turbulence modeling in capturing different…”
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Prediction method for ignition delay time of liquid spray combustion in constant volume chamber by Ong, Jiun Cai, Pang, Kar Mun, Walther, Jens Honore

“…•Predicting ignition delay time without performing reacting spray simulations.•Requires inert spray simulations and 0-D homogeneous reactor…”
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A numerical study of the influence of pilot fuel injection timing on combustion and emission formation under two-stroke dual-fuel marine engine-like conditions by Nemati, Arash, Ong, Jiun Cai, Pang, Kar Mun, Mayer, Stefan, Walther, Jens Honoré

“…Stricter regulations imposed on emissions are motivating the scientific community to consider studying alternative fuels to achieve low emission, high…”
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Large eddy simulation of soot formation in a ducted fuel injection configuration by Ong, Jiun Cai, Zhang, Min, Jensen, Morten Skov, Walther, Jens Honoré

“…The aim of this numerical study is to investigate the soot formation processes in a ducted fuel injection (DFI) spray under engine-like conditions…”
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Large eddy simulation of a premixed dual-fuel combustion: Effects of inhomogeneity level on auto-ignition of micro-pilot fuel by Nemati, Arash, Ong, Jiun Cai, Zhang, Min, Walther, Jens Honoré

“…In a premixed dual-fuel (DF) methane-diesel engine, the ignition of the lean premixed methane/air mixture starts with the assistance of a pilot diesel…”
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LES of pilot n-heptane ignition and its interaction with the lean premixed methane–air mixture in a dual-fuel combustion engine by Ong, Jiun Cai, Pang, Kar Mun, Rajasegar, Rajavasanth, Srna, Ales, Bai, Xue-Song, Walther, Jens H.

“…Large eddy simulations of pilot fuel ignited, lean premixed, natural gas engines are performed to study the pilot-ignition process and its subsequent…”
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Large eddy simulation of transient combustion and soot recession in the ECN Spray A and D flames by Zhang, Min, Ong, Jiun Cai, Pang, Kar Mun, Bai, Xue-Song, Walther, Jens H.

“…This paper presents the numerical results of combustion and soot recession in the Engine Combustion Network (ECN) Spray A and D flames using large eddy…”
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Effects of ambient pressure and nozzle diameter on ignition characteristics in diesel spray combustion by Ong, Jiun Cai, Walther, Jens Honore, Xu, Shijie, Zhong, Shenghui, Bai, Xue-Song, Pang, Kar Mun

“…•3-D URANS simulation of diesel spray using Eulerian Stochastic Field method.•Ignition characteristics at different ambient densities and nozzle…”
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Large-eddy simulation of n-dodecane spray flame: Effects of nozzle diameters on autoignition at varying ambient temperatures by Ong, Jiun Cai, Pang, Kar Mun, Bai, Xue-Song, Jangi, Mehdi, Walther, Jens Honore

“…In the present study, large-eddy simulations (LES) are used to identify the underlying mechanism that governs the ignition phenomena of spray flames from…”
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Large eddy simulation of n-dodecane spray flame: Effects of injection pressure on spray combustion characteristics at low ambient temperature by Ong, Jiun Cai, Zhang, Yan, Xu, Shijie, Walther, Jens Honore, Bai, Xue-Song, Pang, Kar Mun

“…The present study uses large-eddy simulations (LES) to identify the underlying mechanism that governs the ignition and stabilization mechanisms of ECN Spray A…”
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Large eddy simulation of soot formation and oxidation for different ambient temperatures and oxygen levels by Zhang, Min, Ong, Jiun Cai, Pang, Kar Mun, Bai, Xue-Song, Walther, Jens H.

“…This paper presents the numerical study of soot formation and oxidation processes across different ambient temperatures (900K, 1000K, and 1100K) and oxygen…”
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Effects of ambient CO2 and H2O on soot processes in n-dodecane spray combustion using large eddy simulation by Zhang, Min, Ong, Jiun Cai, Pang, Kar Mun, Bai, Xue-Song, Walther, Jens H.

“…In this study, large eddy simulations, coupled a two-equation soot model, are performed to investigate the effects of ambient carbon dioxide (CO2) and…”
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Large eddy simulation of combustion recession: Effects of ambient temperature and injection pressure by Zhang, Min, Ong, Jiun Cai, Pang, Kar Mun, Xu, Shijie, Zhang, Yan, Nemati, Arash, Bai, Xue-Song, Walther, Jens Honore

“…In the present study, large eddy simulation is used to investigate combustion recession for the Engine Combustion Network Spray A flame at two ambient…”
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Numerical Study of the Influence of Turbulence–Chemistry Interaction on URANS Simulations of Diesel Spray Flame Structures under Marine Engine-like Conditions by Ong, Jiun Cai, Pang, Kar Mun, Jangi, Mehdi, Bai, Xue-Song, Walther, Jens Honore

“…The present work performs unsteady Reynolds-averaged Navier–Stokes simulations to study the effect of turbulence–chemistry interaction (TCI) on diesel spray…”
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Evaluation of a Lagrangian Soot Tracking Method for the prediction of primary soot particle size under engine-like conditions by Ong, Jiun Cai, Pang, Kar Mun, Walther, Jens Honore, Ho, Jee-Hou, Ng, Hoon Kiat

“…This paper reports the implementation and evaluation of a Lagrangian soot tracking (LST) method for the modeling of soot in diesel engines. The LST model…”
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Effects of Ambient Oxygen and Density on Primary Soot Size under Diesel-Like Conditions Using a Lagrangian Soot Tracking Model by Ong, Jiun Cai, Pang, Kar Mun, Walther, Jens Honore, Ho, Jee-Hou, Ng, Hoon Kiat

“…This article investigates the effect of ambient oxygen (O₂) levels and ambient density on the primary soot size under diesel engine-like conditions via the…”
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Development of lagrangian soot tracking method for the study of soot morphology in diesel spray combustion by Ong, Jiun Cai

“…The weakness of a conventional Eulerian soot model in capturing primary soot size and its inability to access individual soot information led to the…”
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