Augmentation of convective heat transfer by an effective utilization of droplet inertia

Koichi Hishida, Tatsuto Nagayasu, Masanobu Maeda

研究成果: Article査読

28 被引用数 (Scopus)

抄録

Flow characteristics and heat transfer of a water droplets laden flow behind a backward-facing step have been experimentally and numerically investigated for the condition of isothermally heated dry wall. Two sizes of step heights were employed corresponding to ReH = 5.3 × 103, 1.1 × 104. Numerical simulations were performed by a standard κ-ε model for the gas phase and a Lagrangian stochastic model for the trajectories of droplets. The experimental and numerical results showed that large heat transfer enhancement existed downstream of the reattachment region and was correlated well with the ratio of time scale between an appropriate time scale of the turbulent flow and the relaxation time of droplet.

本文言語English
ページ(範囲)1773-1785
ページ数13
ジャーナルInternational Journal of Heat and Mass Transfer
38
10
DOI
出版ステータスPublished - 1995 7

ASJC Scopus subject areas

  • 凝縮系物理学
  • 機械工学
  • 流体および伝熱

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