scholarly journals The effect of oxygenated fuel properties on diesel spray combustion and soot formation

2017 ◽  
Vol 180 ◽  
pp. 276-283 ◽  
Author(s):  
Wonah Park ◽  
Seunghyun Park ◽  
Rolf D. Reitz ◽  
Eric Kurtz
Keyword(s):  
Soot Formation ◽  
Fuel Properties ◽  
Diesel Spray ◽  
Spray Combustion ◽  
Oxygenated Fuel

Evaluation of Soot Production Near a Cold Surface for an Impinged Diesel Spray Combustion

2020 ◽  
Author(s):  
Zhihao Zhao ◽  
Le Zhao ◽  
Seong-Young Lee
Keyword(s):  
Mass Fraction ◽  
Internal Combustion Engines ◽  
Soot Formation ◽  
Leading Edge ◽  
Ambient Air ◽  
Diesel Spray ◽  
Spray Combustion ◽  
Ambient Conditions ◽  
Cold Surface ◽  
Soot Mass

Abstract Spray impingement in internal combustion engines has received great attentions. Such a phenomenon is especially important for diesel spray because the spray and combustion characteristics are significantly altered by the impingement. In this study, numerical investigations of impinged reacting spray jets in a constant volume combustion chamber were performed to understand the spray and flame structure under high pressure and high temperature conditions. The 3-D computational fluid dynamics (CFD) CONVERGE code was selected as the numerical tool to perform Large-eddy simulations (LES) to understand the process of spray combustion-wall interaction. CFD models were validated against experimental results in terms of spray penetration and ignition delay at inert and reacting spray conditions. The temperature and soot mass fraction profiles near the impinging plate were investigated for 900 and 1000 K ambient conditions. It was found that soot mass fraction is generally increased near the impinging plate as the temperature is decreased. The heat transfer from the flame to the plate makes the temperature close to the wall more favorable for soot formation. A dense soot core was observed at the leading edge when the injection was still happening because the vortex there took the opportunity from existing burned gas to new fuel to meet the ambient air. A soot layer was observed stick on the wall as the air was hard to entrain the flame all the way to the plate side.

A phenomenological model for the prediction of soot formation in diesel spray combustion

2004 ◽  
Vol 136 (3) ◽  
pp. 270-282 ◽  
Author(s):  
Feng Tao ◽  
Valeri I Golovitchev ◽  
Jerzy Chomiak
Keyword(s):  
Phenomenological Model ◽  
Soot Formation ◽  
Diesel Spray ◽  
Spray Combustion

scholarly journals Molecular dynamics simulation of soot formation during diesel combustion with oxygenated fuel addition

2020 ◽  
Vol 22 (36) ◽  
pp. 20829-20836
Author(s):  
Cheng Chen ◽  
Xi Jiang
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Constant Temperature ◽  
Soot Formation ◽  
Dynamics Simulation ◽  
Diesel Combustion ◽  
Oxygenated Additives ◽  
Oxygenated Fuel

The morphology of nascent soot and the effect of oxygenated additives on sooting mitigation at a constant temperature of 3000 K.

A Numerical Study for the Effect of Liquid Film on Soot Formation of Impinged Spray Combustion

2021 ◽  
Author(s):  
Zhihao Zhao ◽  
Xiucheng Zhu ◽  
Le Zhao ◽  
Meng Tang ◽  
Seong-Young Lee
Keyword(s):  
Liquid Film ◽  
Soot Formation ◽  
Numerical Study ◽  
Spray Combustion
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