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

Ken Ichi Sugioka; Satoru Komori

doi:10.1299/kikaib.74.273

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

Ken Ichi Sugioka, Satoru Komori

ENG - Chemical Engineering

Research output: Contribution to journal › Article › peer-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≤ Re_p ≤300.

Original language	English
Pages (from-to)	273-279
Number of pages	7
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	74
Issue number	2
DOIs	https://doi.org/10.1299/kikaib.74.273
Publication status	Published - 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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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.",

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T1 - Drag and lift forces acting on a spherical bubble in homogeneous shear flow

AU - Sugioka, Ken Ichi

AU - Komori, Satoru

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AB - 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.

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KW - Flow outside and inside a bubble

KW - Numerical simulation

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

Abstract

Keywords

ASJC Scopus subject areas

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