Advanced

An accurate method for predicting light scattering from soot aggregates with sub-particles of arbitrary shape and structure

Karlsson, Anders LU ; Bladh, Henrik LU and Bengtsson, Per-Erik LU (2009) In Technical Report LUTEDX/(TEAT-7179)/1-22/(2009) TEAT-7179.
Abstract
Soot particles can be formed in hydrocarbon flames as a result of an inefficient combustion process. The particles are near-spherical, and normally a few tens of nanometers in diameter. At later stages in the soot growth process, they form chain-like sparse aggregates. When applying optical diagnostic methods such as combined scattering and extinction measurements in sooting flames, this aggregation influences the evaluation of soot properties based on assumptions of isolated particles.

In this paper an efficient and accurate method for calculating scattering of light from these structures is presented. The method can handle aggregates with several hundred sub-particles with no restrictions on shape, internal structure, or... (More)
Soot particles can be formed in hydrocarbon flames as a result of an inefficient combustion process. The particles are near-spherical, and normally a few tens of nanometers in diameter. At later stages in the soot growth process, they form chain-like sparse aggregates. When applying optical diagnostic methods such as combined scattering and extinction measurements in sooting flames, this aggregation influences the evaluation of soot properties based on assumptions of isolated particles.

In this paper an efficient and accurate method for calculating scattering of light from these structures is presented. The method can handle aggregates with several hundred sub-particles with no restrictions on shape, internal structure, or conglutination of the sub-particles. The basic idea is that the induced dipole moments of the sub-particles are determined from the solution of a quasi-static problem that can be solved with high accuracy by, e.g., the finite element method. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Book/Report
publication status
unpublished
subject
in
Technical Report LUTEDX/(TEAT-7179)/1-22/(2009)
volume
TEAT-7179
publisher
[Publisher information missing]
language
English
LU publication?
yes
id
b8e1374a-dbe9-45d4-b0bb-c24f605c4155 (old id 1365723)
date added to LUP
2009-03-25 13:26:51
date last changed
2016-04-16 12:19:14
@techreport{b8e1374a-dbe9-45d4-b0bb-c24f605c4155,
  abstract     = {Soot particles can be formed in hydrocarbon flames as a result of an inefficient combustion process. The particles are near-spherical, and normally a few tens of nanometers in diameter. At later stages in the soot growth process, they form chain-like sparse aggregates. When applying optical diagnostic methods such as combined scattering and extinction measurements in sooting flames, this aggregation influences the evaluation of soot properties based on assumptions of isolated particles.<br/><br>
 In this paper an efficient and accurate method for calculating scattering of light from these structures is presented. The method can handle aggregates with several hundred sub-particles with no restrictions on shape, internal structure, or conglutination of the sub-particles. The basic idea is that the induced dipole moments of the sub-particles are determined from the solution of a quasi-static problem that can be solved with high accuracy by, e.g., the finite element method.},
  author       = {Karlsson, Anders and Bladh, Henrik and Bengtsson, Per-Erik},
  institution  = {[Publisher information missing]},
  language     = {eng},
  series       = {Technical Report LUTEDX/(TEAT-7179)/1-22/(2009)},
  title        = {An accurate method for predicting light scattering from soot aggregates with sub-particles of arbitrary shape and structure},
  volume       = {TEAT-7179},
  year         = {2009},
}