A numerical study of separated flow on a suitable grid for bluff bodies. The application to the unsteady flow around a circular cylinder

Hiroo Okanaga, Kazuyuki Shizawa, Noboru Yashima, Takahiko Tanahashi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The investigation of two-dimensional magnetic fluid flow is necessary and important in order to examine the fundamental characteristics of a magnetic fluid. In the present paper, the flow in a square cavity, filled with a magnetic fluid, to which a magnetic field is applied parallel to the moving wall, is numerically analyzed by the finite element method on the basis of governing equations for magnetic fluids with internal rotation. The effects of a magnetic field and some dimensionless parameters characterizing magnetic fluid flow are discussed in detail. The results obtained here are as follows : (1) The GSMAC method has been developed for magnetic fluid algorithm in a homogeneous magnetic field. (2) The flow remarkably expresses a non-Newtonian property due to the micropolar effect when the magnetic field is not applied. (3) When a moderate magnetic field is applied, the flow of the magnetic fluid is similar to that of a Newtonian fluid.

Original languageEnglish
Pages (from-to)2433-2440
Number of pages8
JournalTransactions of the Japan Society of Mechanical Engineers Series B
Volume53
Issue number492
DOIs
Publication statusPublished - 1987
Externally publishedYes

Fingerprint

bluff bodies
separated flow
Magnetic fluids
unsteady flow
circular cylinders
Unsteady flow
Circular cylinders
grids
fluids
Magnetic fields
magnetic fields
fluid flow
Flow of fluids
Newtonian fluids
finite element method
cavities
Finite element method
Fluids

Keywords

  • Body Fitted Grid
  • Circular Cylinder
  • Numerical Analysis
  • Splitter Plate
  • Unsteady Flow
  • Wake

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

A numerical study of separated flow on a suitable grid for bluff bodies. The application to the unsteady flow around a circular cylinder. / Okanaga, Hiroo; Shizawa, Kazuyuki; Yashima, Noboru; Tanahashi, Takahiko.

In: Transactions of the Japan Society of Mechanical Engineers Series B, Vol. 53, No. 492, 1987, p. 2433-2440.

Research output: Contribution to journalArticle

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