Home > Table of Contents


Proceedings of 2009 International Symposium on Computer Science and Computational Technology (ISCSCT 2009)

Huangshan, China, December 26-28, 2009

Editors: Fei Yu, Guangxue Yue, Jian Shu, Yun Liu

AP Catalog Number: AP-PROC-CS-09CN005

ISBN: 978-952-5726-07-7 (Print), 978-952-5726-08-4 (CD-ROM)

Page(s): 58-61

Detailed Soot Source Terms Modeling in Turbulent Reacting Flow

Yongfeng Liu, Youtong Zhang, Hongsen Tian, and Lianda Liu

Full text: PDF


To calculate soot source terms a new detailed kinetic soot model is applied to study the formation and oxidation of soot particles in turbulent flames. The model is based on a detailed description of the chemical and physical processes leading to the formation of soot. It can be subdivided into the growth of polycyclic aromatic hydrocarbons (PAHs) in the gas phase reactions and the processes of particle inception, condensation, surface growth, and oxidation. Two different parts are developed about the growth of PAHs in the gas phase reaction. The first step towards the formation of soot is the formation of benzene and the second step is how to form PAH from benzene. In surface growth and oxidation process Hydrogen Abstraction - Carbon Addition (HACA) mechanism is modified due to the finding that the bound between the acetylene and the soot surface can be broken at high temperature in the experiment. Finally the analysis about soot source terms are used in turbulent combustion and different calculated results are obtained for different soot source terms. Acetylene, soot and OH densities are discussed and soot spatial distributions in the cylinder for different crank angle degree are carried out in 4JB1 engine.

Index Terms

Soot source terms; Polycyclic aromatic hydrocarbons ;(PAHs), Turbulent combustion1 Introduction

Copyright @ 2009 ACADEMY PUBLISHER All rights reserved