Soot and temperature distribution in a diesel diffusion flame: 3-D CFD simulation and measurement with laser diagnostics

Han, Yang‐Kyoo; Park, W.; Min, Kyoungdoug

doi:10.1007/s12239-011-0003-2

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Thus, they can be uniquely described by two parameters: mixture fraction , defined in (7), and strain rate (or equivalently, scalar dissipation , defined in (8)). The chemistry is therefore reduced and completely described by quantities and .…”

Section: Turbulence-chemistry Interaction Modelmentioning

confidence: 99%

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Numerical Simulation of PAHs Formation and Effect of Operating Conditions in DI-Diesel Engines Based on a Comprehensive Chemical Mechanism

Zhong

2013

Advances in Mechanical Engineering

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Three-dimensional numerical simulations of polycyclic aromatic hydrocarbon (PAH) formation in a Chaochai 6102bzl direct injection diesel engine are performed. n-Heptane is chosen as the fuel. A detailed mechanism, which includes 108 species and 572 elementary reactions that describe n-heptane oxidation and PAH formation, is proposed. A reduced kinetic mechanism, with only 86 reactions and 57 species, is developed and incorporated into computational fluid dynamics (CFD) software for the numerical simulations. Results show that PAHs, which were mostly deposited at the bottom of the diesel combustion chamber wall, first increased and then decreased with the increase in diesel crank angle. Furthermore, the diesel engine operating conditions (intake vortex intensity, intake air pressure, fuel injection advance angle, diesel load, and engine speed) had a significant effect on PAH formation.

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Section: Turbulence-chemistry Interaction Modelmentioning

confidence: 99%

“…Some researchers [8,9] directly used the EBU model in threedimensional simulations to describe diesel engine combustion. Cordiner et al [10] used a mixed 1D-3D numerical procedure, together with the Shell and characteristic-time combustion models, to analyse combustion and exhaust emission in a dual-fuel diesel/natural gas engine.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of PAHs Formation and Effect of Operating Conditions in DI-Diesel Engines Based on a Comprehensive Chemical Mechanism

Zhong

2013

Advances in Mechanical Engineering

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Combustion and emission modelling of a direct-injection spark-ignition engine by combining flamelet models for premixed and diffusion flames

Kwon

Choi

Kim

et al. 2012

Combustion Theory and Modelling

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Evaluation of Droplet Breakup Models and Application to the Diesel Engine Combustion Analysis

Park¹,

Lee²,

Min³

2013

Transactions of the Korean Society of Automotive Engineers

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: It is important to understand the fuel injection characteristics, particularly the atomization, penetration, and breakup, for reducing the emissions in Diesel engines because those characteristics are related to the formation of the emissions. 3-dimensional CFD code can provide a fundamental understanding of those characteristics. In this study, two different breakup models (the Reitz-Diwakar model and the Kelvin-Helmholts Rayleigh Taylor model) were validated with the experimental data in a constant volume vessel. Then, the effect of the breakup model on the characteristics of the engine combustion and emission was studied.

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Soot and temperature distribution in a diesel diffusion flame: 3-D CFD simulation and measurement with laser diagnostics

Cited by 3 publications

References 9 publications

Numerical Simulation of PAHs Formation and Effect of Operating Conditions in DI-Diesel Engines Based on a Comprehensive Chemical Mechanism

Numerical Simulation of PAHs Formation and Effect of Operating Conditions in DI-Diesel Engines Based on a Comprehensive Chemical Mechanism

Combustion and emission modelling of a direct-injection spark-ignition engine by combining flamelet models for premixed and diffusion flames

Evaluation of Droplet Breakup Models and Application to the Diesel Engine Combustion Analysis

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