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Acceleration techniques for the discrete ordinate method

Efremenko, Dmitry and Doicu, Adrian and Loyola, Diego and Trautmann, Thomas (2013) Acceleration techniques for the discrete ordinate method. Journal of Quantitative Spectroscopy and Radiative Transfer, 114, pp. 73-81. Elsevier. DOI: 10.1016/j.jqsrt.2012.08.014 ISSN 0022-4073

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Official URL: http://www.sciencedirect.com/science/article/pii/S0022407312003780

Abstract

In this paper we analyze several acceleration techniques for the discrete ordinate method with matrix exponential and the small-angle modification of the radiative transfer equation. These techniques include the left eigenvectors matrix approach for computing the inverse of the right eigenvectors matrix, the telescoping technique, and the method of false discrete ordinate. The numerical simulations have shown that on average, the relative speedup of the left eigenvector matrix approach and the telescoping technique are of about 15% and 30%, respectively.

Item URL in elib:https://elib.dlr.de/81189/
Document Type:Article
Title:Acceleration techniques for the discrete ordinate method
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Efremenko, Dmitrydmitry.efremenko (at) dlr.deUNSPECIFIED
Doicu, AdrianAdrian.Doicu (at) dlr.deUNSPECIFIED
Loyola, Diegodiego.loyola (at) dlr.deUNSPECIFIED
Trautmann, Thomasthomas.trautmann (at) dlr.deUNSPECIFIED
Date:January 2013
Journal or Publication Title:Journal of Quantitative Spectroscopy and Radiative Transfer
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:114
DOI :10.1016/j.jqsrt.2012.08.014
Page Range:pp. 73-81
Publisher:Elsevier
ISSN:0022-4073
Status:Published
Keywords:Radiative transfer; Discrete ordinates; Left eigenvectors
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Entwicklung von Atmosphärenprozessoren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Efremenko, Dr Dmitry
Deposited On:18 Feb 2013 13:17
Last Modified:06 Sep 2019 15:28

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