Dependent absorption and extinction of radiation by small particles

S. Kumar, C. L. Tien

Research output: Contribution to journalArticle

Abstract

This study presents an analytical model to evaluate the dependent absorption and extinction characteristics of dense particulate systems. Simple expressions are obtained by considering statistical averages based on the random character of the particulate medium. Departure from the assumption of independent scattering and absorption of radiation originates from two mechanisms: perturbation of the internal field of each particle by the presence of other particles, and coherent addition (i.e., taking into account the constructive/destructive interference) of the far-field scattered radiation.

Original languageEnglish (US)
Pages (from-to)178-185
Number of pages8
JournalJournal of Heat Transfer
Volume112
Issue number1
StatePublished - Feb 1990

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particulates
extinction
Radiation
radiation
far fields
Analytical models
Scattering
interference
perturbation
scattering

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

Cite this

Dependent absorption and extinction of radiation by small particles. / Kumar, S.; Tien, C. L.

In: Journal of Heat Transfer, Vol. 112, No. 1, 02.1990, p. 178-185.

Research output: Contribution to journalArticle

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