2D numerical simulation of slow flow past circular cylinders

Norihiko Sugimoto, Hiroaki Hashiya, Katsuya Ishii

Research output: Contribution to journalArticle

Abstract

Two dimensional slow viscous flows past one or two circular cylinders are investigated by direct numerical simulation with incompressible Navier-Stokes equations. Steady uniform flows are obtained from the pressure difference imposed at the boundaries. In the simulation of one cylinder, drag coefficients are in good agreement with those obtained in experimental and other numerical studies for relatively low Re (1 {precedes or equivalent to} Re {precedes or equivalent to} 102), and those in theoretical studies for very low Re (O(10-2 {precedes or equivalent to} Re {precedes or equivalent to} 1). In the case of two cylinders, we successfully visualize flow separation patterns which are similar to those in experimental and theoretical studies. We also investigate the flow separation patterns and drag coefficients of the cylinders in detail, and obtain the new flow separation pattern in some parameter space.

Original languageEnglish
Pages (from-to)273-283
Number of pages11
JournalTheoretical and Applied Mechanics Japan
Volume56
DOIs
Publication statusPublished - 2008
Externally publishedYes

Fingerprint

flow separation
Flow separation
circular cylinders
Circular Cylinder
Circular cylinders
Flow Separation
drag coefficients
Drag coefficient
Numerical Simulation
Drag Coefficient
Computer simulation
uniform flow
simulation
Direct numerical simulation
viscous flow
Viscous flow
direct numerical simulation
Navier-Stokes equation
Navier Stokes equations
Incompressible Navier-Stokes Equations

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mathematics(all)

Cite this

2D numerical simulation of slow flow past circular cylinders. / Sugimoto, Norihiko; Hashiya, Hiroaki; Ishii, Katsuya.

In: Theoretical and Applied Mechanics Japan, Vol. 56, 2008, p. 273-283.

Research output: Contribution to journalArticle

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