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Large eddy simulation of turbulent combustion in a spark-assisted homogenous charge compression ignition engine

Joelsson, Tobias LU ; Yu, Rixin LU and Bai, Xue-Song LU (2012) In Combustion Science and Technology 184(7-8). p.1051-1065
Abstract
A large eddy simuation (LES) model is presented for simulation of spark-assisted homogeneous charge compression ignition combustion. The model is based on tabulated chemical kinetic rate for ignition and flame surface density for flame propagation, taking into account interaction between flame propagation introduced by the spark and auto-ignition due to charge compression. The model is used to simulate the combustion process in an experimental HCCI engine, with operation conditions ranging from spark-ignition controlled flame propagation to auto-ignition controlled HCCI combustion. The model is shown to be able to predict the combustion behavior observed in previous engine experiments. With low initial temperature, the SI flame mode... (More)
A large eddy simuation (LES) model is presented for simulation of spark-assisted homogeneous charge compression ignition combustion. The model is based on tabulated chemical kinetic rate for ignition and flame surface density for flame propagation, taking into account interaction between flame propagation introduced by the spark and auto-ignition due to charge compression. The model is used to simulate the combustion process in an experimental HCCI engine, with operation conditions ranging from spark-ignition controlled flame propagation to auto-ignition controlled HCCI combustion. The model is shown to be able to predict the combustion behavior observed in previous engine experiments. With low initial temperature, the SI flame mode prevails; with high initial temperature, the HCCI mode prevails. With moderate initial temperature, the SI flame and HCCI ignition interact more closely, which results in higher sensitivity to the initial temperature and turbulence conditions. This may be the reason of the observed high cyclic variation in the experiments. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Large eddy simulation, Modeling, Spark-assisted HCCI combustion
in
Combustion Science and Technology
volume
184
issue
7-8
pages
1051 - 1065
publisher
Taylor & Francis
external identifiers
  • wos:000307190700015
  • scopus:84865018386
ISSN
1563-521X
DOI
10.1080/00102202.2012.663997
language
English
LU publication?
yes
id
4fd377a3-15c4-47df-be32-04f1094fc0ba (old id 3079760)
date added to LUP
2012-09-25 11:26:37
date last changed
2017-06-11 03:23:07
@article{4fd377a3-15c4-47df-be32-04f1094fc0ba,
  abstract     = {A large eddy simuation (LES) model is presented for simulation of spark-assisted homogeneous charge compression ignition combustion. The model is based on tabulated chemical kinetic rate for ignition and flame surface density for flame propagation, taking into account interaction between flame propagation introduced by the spark and auto-ignition due to charge compression. The model is used to simulate the combustion process in an experimental HCCI engine, with operation conditions ranging from spark-ignition controlled flame propagation to auto-ignition controlled HCCI combustion. The model is shown to be able to predict the combustion behavior observed in previous engine experiments. With low initial temperature, the SI flame mode prevails; with high initial temperature, the HCCI mode prevails. With moderate initial temperature, the SI flame and HCCI ignition interact more closely, which results in higher sensitivity to the initial temperature and turbulence conditions. This may be the reason of the observed high cyclic variation in the experiments.},
  author       = {Joelsson, Tobias and Yu, Rixin and Bai, Xue-Song},
  issn         = {1563-521X},
  keyword      = {Large eddy simulation,Modeling,Spark-assisted HCCI combustion},
  language     = {eng},
  number       = {7-8},
  pages        = {1051--1065},
  publisher    = {Taylor & Francis},
  series       = {Combustion Science and Technology},
  title        = {Large eddy simulation of turbulent combustion in a spark-assisted homogenous charge compression ignition engine},
  url          = {http://dx.doi.org/10.1080/00102202.2012.663997},
  volume       = {184},
  year         = {2012},
}