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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Fluid Mechanics Research
ESCI SJR: 0.22 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v25.i4-6.100
pages 556-567

Recent Developments in the Solution of Radiation Heat Transfer Using the Discrete Ordinates Method

John C. Chai
Department of Engineering and Technology, School of Computing and Engineering, University of Huddersfield, Huddersfield, HD1 3DH, UK
H. S. Lee
NASA Lewis Research Center, Cleveland, USA
Suhas V. Patankar
Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, and Innovative Research, Inc., Plymouth, MN 55447, USA

Краткое описание

This paper focuses on some of the shortcomings of the discrete ordinates method. Some are crucial to the solution accuracy, while others affect the efficiency of the solution procedure. The shortcomings reviewed in this paper are the ray effect, excessively long computational times in optically thick media, effects of spatial differencing schemes, and false scattering. A recent proposal for a more efficient treatment of the in-scattering term, that reduces the computational times for optically thick scattering media, is described. A study of several spatial differencing schemes, that showed that the diamond scheme can produce physically unrealistic solutions for some multidimensional computations, is discussed. Recommendations for a better differencing scheme that would also reduce false scattering are given.


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