A fast method of radiative heat transfer analysis between arbitrary three-dimensional bodies composed of specular and diffuse surfaces

Shigenao Maruyama, Yuhei Takeuchi, Shigeki Hirasawa

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The radiation element method by ray emission model (REM2) has been improved by using the law of reciprocity for the specular view factor and the incomplete Cholesky conjugate gradient (ICCG) method to reduce computational time. This improved method was applied to analyze the radiative heat transfer between arbitrary three-dimensional bodies composed of specular and diffuse surfaces. The accuracy of the improved method was evaluated by comparing analytical solutions. And the method was used to calculate radiative heat transfer between machine elements and heater panels. CPU time to calculate the radiative exchange for a model composed of 3193 elements was reduced to 1/430 of that by the previous numerical method using a decomposition method.

Original languageEnglish
Pages (from-to)761-776
Number of pages16
JournalNumerical Heat Transfer; Part A: Applications
Volume39
Issue number8
DOIs
Publication statusPublished - 2001 Jun

ASJC Scopus subject areas

  • Numerical Analysis
  • Condensed Matter Physics

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