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Accurate method for predicting light scattering from soot aggregates with subparticles of arbitrary shape and structure

In English

Författare

Summary, in English

Soot particles can be formed in hydrocarbon flames as a result of an inefficient combustion process. The particles are near-spherical, and at later stages in the soot growth process, they form chainlike sparse aggregates. When applying optical diagnostic methods, 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 subparticles with no restrictions on shape, internal structure, or coagulation of the subparticles. The basic idea is that the induced dipole moments of the subparticles are determined from the solution of a quasi-static problem that can be solved with high accuracy by, e.g., the finite element method. (C) 2009 Optical Society of America

Publiceringsår

2009

Språk

Engelska

Sidor

1704-1713

Publikation/Tidskrift/Serie

Journal of the Optical Society of America A

Volym

26

Issue

7

Dokumenttyp

Artikel i tidskrift

Förlag

Optical Society of America

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Forskningsgrupp

  • Electromagnetic theory

ISBN/ISSN/Övrigt

  • ISSN: 1084-7529