Detached-Eddy Simulation of Flows over a Circular Cylinder at High Reynolds Number

摘要

This paper presents a numerical study of flow over a circular cylinder at high Reynolds number using detached-eddy simulation (DES). The k-C Shear Stress Transport (SST) based DES model is selected for handling massively separated flow. The computations are performed with an Otype grid and the instantaneous and statistical characteristics of the turbulent wake flow behind the cylinder is extensively studied. The results are compared with the available experimental data, as well as the previously published numerical data obtained from Reynoldsaveraged Navier-Stokes (RANS) and large-eddy simulation (LES). The incompressible flow assumption and finite volume discretization is adopted. All the works are carried out with the use of OpenFOAM toolbox.