2D Numerical Simulation of Slow Flow past Circular Cylinders

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 coeffic...

Full description

Saved in:
Bibliographic Details
Published inTheoretical and Applied Mechanics Japan Vol. 56; pp. 273 - 283
Main Authors SUGIMOTO, Norihiko, HASHIYA, Hiroaki, ISHII, Katsuya
Format Journal Article
LanguageEnglish
Published Tokyo National Committee for IUTAM 2008
Japan Science and Technology Agency
Online AccessGet full text

Cover

More Information
Summary: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?Re?102), and those in theoretical studies for very low Re (O(10-2)?Re?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.
ISSN:1348-0693
1349-4244
DOI:10.11345/nctam.56.273