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- W4243399279 abstract "Two-dimensional ‘turbulent’ flow around a rectangular cylinder has been simulated at Re=10,000 using a sixth- order-accurate finite volume method for the discretization of convection and diffusion. The spatial discretization consists of a combination of a seventh- order upwind-biased method for the convective terms and an eighth-order central method for the diffusive terms, discretized on a stretched and staggered grid. To cope with the stretching of the grid, Lagrange interpolations are used. The method applied to obtain a boundary condition for the velocity in the x-direction at the outflow boundary is shown not to affect the flow in the interior of the computational domain in a way that is visible in various snapshots of the vorticity field. The variation in the velocity in the x-direction with time is itself found to be relatively small near the outflow boundary. Several turbulence statistics have been gathered from a simulation of the flow developed during 77 dimensionless time units. Snapshots of the vorticity field of the developed flow show the presence of a vortex-street- like structure. Typical 2D turbulent behaviour, such as the appearance of monopolar, dipolar and tripolar vortices due to the amalgamation of vorticity in the wake and the x−1/2 scaling of the velocity defect in the wake, has been obtained. © 1997 John Wiley & Sons, Ltd." @default.
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- W4243399279 date "1997-07-15" @default.
- W4243399279 modified "2023-09-26" @default.
- W4243399279 title "DNS OF 2D TURBULENT FLOW AROUND A SQUARE CYLINDER" @default.
- W4243399279 doi "https://doi.org/10.1002/(sici)1097-0363(19970715)25:1<51::aid-fld538>3.3.co;2-b" @default.
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