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 athigh Reynolds number using detached-eddy simulation (DES). The k-CShear Stress Transport (SST) based DES model is selected for handlingmassively separated flow. The computations are performed with an Otypegrid and the instantaneous and statistical characteristics of theturbulent wake flow behind the cylinder is extensively studied. Theresults are compared with the available experimental data, as well asthe previously published numerical data obtained from ReynoldsaveragedNavier-Stokes (RANS) and large-eddy simulation (LES). Theincompressible flow assumption and finite volume discretization isadopted. All the works are carried out with the use of OpenFOAMtoolbox.