Drag and lift forces acting on a spherical bubble in homogeneous shear flow

Ken Ichi Sugioka, Satoru Komori

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Drag and lift forces acting on a spherical bubble in a homogeneous linear shear flow were numerically investigated by means of a three dimensional direct numerical simulation based on a marker and cell (MAC) method. The effects of fluid shear rate and particle Reynolds number on drag and lift forces acting on a spherical bubble were compared with those on an inviscid bubble. The results show that the drag force acting on a spherical bubble in a linear shear flow increases with shear. The behavior of the lift force on a bubble is quite similar to that on an inviscid bubble, but the effects of fluid shear rate on the lift force acting on a spherical bubble in the linear shear flow become bigger than that acting on an inviscid bubble in the particle Reynolds number region of 1≤ Rep ≤300.

Original languageEnglish
Pages (from-to)273-279
Number of pages7
JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume74
Issue number2
DOIs
Publication statusPublished - 2008 Feb

Keywords

  • Drag and lift forces
  • Flow outside and inside a bubble
  • Numerical simulation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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