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RISModeling Soot Formation Using Reduced Polycyclic Aromatic Hydrocarbon Chemistry in n-Heptane Lifted Flames With Application to Low Temperature Combustion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical study of in-cylinder soot formation and oxidation processes in n-heptane lifted flames using various soot inception species has been conducted. In a recent study by the authors, it ...
A Continuous Multicomponent Fuel Flame Propagation and Chemical Kinetics Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A continuous multicomponent fuel flame propagation and chemical kinetics model has been developed. In the multicomponent fuel model, the theory of continuous thermodynamics was used to model the ...
Assessment of Multiobjective Genetic Algorithms With Different Niching Strategies and Regression Methods for Engine Optimization and Design
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In a previous study (, and , 2008, “Assessment of Optimization Methodologies to Study the Effects of Bowl Geometry, Spray Targeting and Swirl Ratio for a Heavy-Duty Diesel Engine Operated at ...
An Experimental Investigation on the Effect of Post-Injection Strategies on Combustion and Emissions in the Low-Temperature Diesel Combustion Regime
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to meet future emissions regulations, new combustion concepts are being developed. Among them, the development of low-temperature diesel combustion systems has received considerable ...
A Numerical Investigation of Transient Flow and Cavitation Within Minisac and Valve-Covered Orifice Diesel Injector Nozzles
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Cavitating flow within diesel injector passages has been investigated numerically using the homogeneous equilibrium model (HEM), which uses the barotropic assumption and the variable speed of sound ...
Modeling the Effect of Injector Nozzle-Hole Layout on Diesel Engine Fuel Consumption and Emissions
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical simulations were used to study the effect of reduced nozzle-hole size and nozzle tip hole configuration on the combustion characteristics of a high speed direct injection diesel engine. ...
Reduction of Numerical Parameter Dependencies in Diesel Spray Models
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Numerical grid and time-step dependencies of discrete droplet Lagrangian spray models are identified. The two main sources of grid dependency are due to errors in predicting the droplet-gas ...
Investigation of the Roles of Flame Propagation, Turbulent Mixing, and Volumetric Heat Release in Conventional and Low Temperature Diesel Combustion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this work, a multimode combustion model that combines a comprehensive kinetics scheme for volumetric heat release and a level-set-based model for turbulent flame propagation is applied over ...
Reduction in NOx and CO Emissions in Stoichiometric Diesel Combustion Using a Three-Way Catalyst
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental and numerical studies were performed to investigate the simultaneous reduction in NOx and CO for stoichiometric diesel combustion with a three-way catalyst. A single-cylinder engine ...
Comparisons of Diesel PCCI Combustion Simulations Using a Representative Interactive Flamelet Model and Direct Integration of CFD With Detailed Chemistry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Diesel engine simulation results using two different combustion models are presented in this study, namely the representative interactive flamelet (RIF) model and the direct integration of ...