@inproceedings{ef74e78c628a45d7a3b247e663146af1,
title = "Comparison of predictive capabilities of des and rans simulations of the separated flow around a circular cylinder",
abstract = "This study presents results of the time-accurate computation of three-dimensional flow around the circular cylinder. Detached-Eddy Simulation (DES) and Unsteady Reynolds- Averaged Navier-Stokes (URANS) are described and evaluate for the separated subsonic flow. DES is the hybrid method combing with RANS and LES to simulate the turbulent flow with detached eddies. The location and strength of separated vortex, flowfield and pressure distribution on the surface were compared between two turbulence models: DES based Spalart-Allmaras (S-A) model and S-A model in RANS. The results show that the secondary vortex is caught by DES at low angle of attack more accurately than RANS. As the angle of attack increased, the steady asymmetric vortex pattern observed on slender bodies of revolution and agreed well with the experimental data. The results of numerical simulation show that DES is more suitable for the prediction of complex separated turbulent flow around a circular cylinder.",
author = "Ming Xia and Song, {Bi Feng} and Dong Li and Rui Ye",
year = "2010",
doi = "10.2514/6.2010-328",
language = "英语",
isbn = "9781600867392",
series = "48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition",
publisher = "American Institute of Aeronautics and Astronautics Inc.",
booktitle = "48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition",
}