Multi-particle collision dynamics: Flow around a circular and a square cylinder
Institut für Festkörperforschung,
D-52425 Jülich, Germany
2 Supercomputing Institute, University of Minnesota 1200 Washington Ave. S., Minneapolis, MN 55415, USA
Accepted: 2 August 2001
A particle-based model for mesoscopic fluid dynamics is used to simulate steady and unsteady flows around a circular and a square cylinder in a two-dimensional channel for a range of Reynolds numbers between 10 and 130. Numerical results for the recirculation length, the drag coefficient, and the Strouhal number are reported and compared with previous experimental measurements and computational fluid dynamics data. The good agreement demonstrates the potential of this method for the investigation of complex flows.
PACS: 02.70.Ns – Molecular dynamics and particle methods / 47.11.+j – Computational methods in fluid dynamics / 82.20.Wt – Computational modeling; simulation
© EDP Sciences, 2001