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Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 54, 2008 - Issue 2
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Original Articles

Three-Dimensional Simulation of Flow Past a Circular Cylinder by Nonlinear Turbulence Model

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Pages 221-234 | Received 27 Sep 2007, Accepted 07 Mar 2008, Published online: 19 May 2008
 

Abstract

Numerical simulation of flow past a circular cylinder at sub-critical Reynolds number Re = 3,900 is performed using three-dimensional, unsteady, Reynolds–Averaged Navier-Stokes (URANS) equations. A nonlinear turbulence model based on the kε formulation is used to achieve the turbulent closure. The results obtained by the simulations are compared with experimental and previously reported numerical results. The grid used for the present simulation is reasonable, and the accuracy obtained is good considering the computational cost involved in carrying out large-eddy simulations (LES) for the same test case. The test flow is also simulated using standard kε model, and the results obtained by the nonlinear kε model are found to be better.

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