Anisotropy of effective thermal conductivity analysis of heat transfer coefficient distribution around spherical particles in a packed bed

Yusuke Asakuma, Masahiro Asada, Yushin Kanazawa, Tsuyoshi Yamamoto

研究成果: Contribution to journalArticle査読

抄録

Effective thermal conductivity with radiation is analyzed by a homogenization method. The method used can precisely represent the conditions around particles in a packed bed. In this study, the effects of variation in parameters such as heat transfer coefficient distribution around spherical particles in a packed bed, Reynolds number, temperature and particle size on the conductivity were estimated in order to elucidate the heat transfer mechanism of complex packed structures. The results show that it is unnecessary in heat transfer analysis to consider the anisotropic behavior of the flow direction for larger particles, high Reynolds numbers and high temperatures. However, the heat transfer was anisotropic for smaller particle sizes.

本文言語英語
ページ(範囲)31-38
ページ数8
ジャーナルComputer Assisted Methods in Engineering and Science
22
1
出版ステータス出版済み - 1 1 2015

All Science Journal Classification (ASJC) codes

  • 計算力学
  • 機械工学
  • コンピュータ サイエンスの応用

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