Transient radiative transfer in participating media with pulse-laser irradiation-an approximate Galerkin solution

Tuba Okutucu, Yaman Yener*, Ahmed A. Busnaina

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

An assessment is made of the Galerkin technique as an effective method of solution for transient radiative transfer problems in participating media. A one-dimensional absorbing and isotropically scattering plane-parallel gray medium irradiated with a short-pulse laser on one of its boundaries is considered for the application of the method. The medium is non-emitting and the boundaries are non-reflecting and non-refracting. In the integral formulation of the problem for the source function, the time-wise variation of the radiation intensity at any point and in any direction in the medium is assumed to be the same as the time-wise variation of the average intensity at the same point as an approximation for the application of the method. The transient transmittance and reflectance of the medium are evaluated for various values of the optical thickness, scattering albedo and pulse duration. The results are in agreement with those available in the literature. It is demonstrated that the method is relatively simple to implement and yields accurate results.

Original languageEnglish
Pages (from-to)118-130
Number of pages13
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume103
Issue number1
DOIs
Publication statusPublished - Jan 2007
Externally publishedYes

Funding

The first author would like to acknowledge the financial support provided by the Scientific and Technical Research Council of Turkey (TÜBİTAK), and Northeastern University's Graduate School of Engineering and the NSF Center for Microcontamination Control.

FundersFunder number
TÜBİTAK
National Science Foundation
Northeastern University
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

    Keywords

    • Galerkin method
    • Participating medium
    • Short-pulse laser irradiation
    • Transient radiative transfer

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