Effects of density distribution of growing frost layer on radiation transfer

Atsumasa Yoshida, Takeshi Haida, Eiji Matsumoto, Seiichi Washio

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Our main interest concerned the effects of the density distribution on radiation transfer in scattering media. The frost layer in the early growth stage under the control of diffusion was chosen as the media. Numerical analysis of the radiation transfer was carried out by using a modified Monte Carlo method on the basis of geometrical optics. A diffusion-limited aggregation theory was introduced to simulate the growth of a frost layer with a treelike structure. The relation between the density distribution and the transmittance of the simulated model was made clear by the numerical analysis. On the basis of these results, optical measurements in the visible wavelength region were utilized to evaluate the density distribution in the frost layer, which varied with cooling condition, on the transmittance values.

Original languageEnglish
Pages (from-to)439-450
Number of pages12
JournalHeat Transfer - Asian Research
Volume30
Issue number5
DOIs
Publication statusPublished - 2001 Jul
Externally publishedYes

Keywords

  • Density distribution
  • Frost
  • Geometrical optics
  • Numerical analysis
  • Optical measurement
  • Radiation transfer
  • Scattering media
  • Treelike structure

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes

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