Abstract
Due to the high computational cost, well-resolved large-eddy simulation (LES) of wall-bounded turbulent flow at very high Reynolds number (>107) is still difficult. To deal with this issue, Detached-eddy simulation (DES) is used in engineering applications. In this study, DES based on Spalart-Allmaras (SA) model was conducted in several turbulent flows. The performance of the DES-SA model is validated in fully developed turbulent channel flow, turbulent flow around a circular cylinder and turbulent flow around a NACA0012 airfoil. The advantages and disadvantages of the DES-SA model are summarized. Possible approaches to improve the DES-SA model are discussed. [This abstract is not included in the PDF]
