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Advanced numerical simulation of heat transfer problems
Author(s) -
Ikegawa Masahiro,
Kaiho Masayuki,
Hayasaka Atsushi
Publication year - 2004
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.831
Subject(s) - heat transfer , computer science , finite element method , thermal science , mesh generation , scale (ratio) , mechanics , mechanical engineering , computational science , heat transfer coefficient , thermodynamics , critical heat flux , engineering , physics , quantum mechanics
This paper describes two kinds of practical numerical techniques for heat transfer problems. One is a parallel large eddy simulation technique with heat transfer using tetrahedral finite elements and the other is the Voxel method using a uniform grid combined with the discrete element method for liquid–solid two‐phase flow problems. These two approaches are taken to be the candidates for the practical use of large‐scale heat transfer analysis for various kinds of problems. The former can reduce the overall computing time in performing a large‐scale heat transfer analysis through the combined use of an automatic mesh generation software, and the latter is very useful and efficient to analyse a complicated heat transfer phenomena such as a liquid–solid two‐phase flow in a fluidized bed. Numerical examples for both approaches show fairly good agreement with experimental results and these two methods are demonstrated to be powerful tools for analysing large‐scale and complicated heat transfer problems. Copyright © 2004 John Wiley & Sons, Ltd.