Natural convection of water-fine particle suspension in a rectangular cell heated and cooled from opposing vertical walls effect of distribution of particle size

  • Masashi Okada*
  • , Kazuya Oyama
  • , Satoshi Yano
  • , Chaedong Kang
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

A water-fine particle suspension with a uniform initial temperature and concentration in a rectangular cell was heated from a vertical wall and cooled from the opposing vertical wall. The dispersed particles had a distribution in size. In this natural convection, many layers separated by almost-horizontal sharp interfaces were observed. In the beginning the many layers appear, and each interface of the layers falls gradually with a constant velocity, and finally all layers vanish. To make this phenomenon clear, concentrations and mean diameters of the particles in each layer and temperature distributions were measured. Moreover natural convection of the other suspension with the particles which had a narrow size distribution was also investigated.

Original languageEnglish
Pages (from-to)3062-3069
Number of pages8
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume65
Issue number637
DOIs
StatePublished - 1999.09

Keywords

  • Double diffusive convection
  • Heat transfer
  • Multi-phase flow
  • Natural convection
  • Particle size distribution
  • Sedimentation
  • Suspension

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