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Development and Validation of a Turbulent Flame Propagation Model

Bjerkborn, Simon LU (2011) FYSM31 20111
Department of Physics
Abstract
The aim of this thesis was to develop a model for flame propagation, to implement in a zero-dimensional engine simulation tool (DARS 0d-SRM) which previously only used fitted Wiebe-functions to describe the flame propagation. The idea was to create a model which could replace or complement the Wiebe function, but with predictive capabilities,
avoiding the need to perform curve-fitting when certain parameters are changed.
In addition to selecting and developing a suitable mathematical model for calculating the turbulent flame propagation speed, the project also included developing a suitable model for calculating the flame volume for a given flame radius. To achieve maximum precision, a Monte Carlo model was created for this purpose.
The... (More)
The aim of this thesis was to develop a model for flame propagation, to implement in a zero-dimensional engine simulation tool (DARS 0d-SRM) which previously only used fitted Wiebe-functions to describe the flame propagation. The idea was to create a model which could replace or complement the Wiebe function, but with predictive capabilities,
avoiding the need to perform curve-fitting when certain parameters are changed.
In addition to selecting and developing a suitable mathematical model for calculating the turbulent flame propagation speed, the project also included developing a suitable model for calculating the flame volume for a given flame radius. To achieve maximum precision, a Monte Carlo model was created for this purpose.
The flame propagation model was validated against an earlier study, and against two sets of experimental data. Good correlation was found. (Less)
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author
Bjerkborn, Simon LU
supervisor
organization
course
FYSM31 20111
year
type
H1 - Master's Degree (One Year)
subject
keywords
Combustion physics, flame propagation, engine simulations, SI engines, Bjerkborn, Simon Bjerkborn, Loge AB, Loge, SRM, Stochastic Reactor Model, Monte Carlo
language
English
id
3048404
date added to LUP
2012-11-16 16:31:45
date last changed
2012-11-16 16:31:45
@misc{3048404,
  abstract     = {The aim of this thesis was to develop a model for flame propagation, to implement in a zero-dimensional engine simulation tool (DARS 0d-SRM) which previously only used fitted Wiebe-functions to describe the flame propagation. The idea was to create a model which could replace or complement the Wiebe function, but with predictive capabilities,
avoiding the need to perform curve-fitting when certain parameters are changed.
In addition to selecting and developing a suitable mathematical model for calculating the turbulent flame propagation speed, the project also included developing a suitable model for calculating the flame volume for a given flame radius. To achieve maximum precision, a Monte Carlo model was created for this purpose.
The flame propagation model was validated against an earlier study, and against two sets of experimental data. Good correlation was found.},
  author       = {Bjerkborn, Simon},
  keyword      = {Combustion physics,flame propagation,engine simulations,SI engines,Bjerkborn,Simon Bjerkborn,Loge AB,Loge,SRM,Stochastic Reactor Model,Monte Carlo},
  language     = {eng},
  note         = {Student Paper},
  title        = {Development and Validation of a Turbulent Flame Propagation Model},
  year         = {2011},
}