DES of the turbulent flow around a circular cylinder of finite height

Abstract

The current research work investigates numerically the turbulent flow field characteristics around three dimensional circular cylinder of finite height at Reynolds number of 43000 using Detached Eddy Simulation (DES) turbulence model. The numerical results have been compared with the experiment and theoretical results obtained by other researchers. The results reveal that the DES turbulence model is superior to LES for predicting the flow past the circular cylinder of finite height at this Reynolds number. The numerical results of the current study show the great potential of the presented DES for investigating the complicated flow structure in this case. DES is very accurate for predicting the flow characteristics in many sophisticated cases and can reduce the computational efforts during the simulation process in comparison with Large Eddy Simulation (LES) turbulence mathematical model.