Title :
Application of DES Method to the Numerical Study of Shock Oscillations on a Supercritical Airfoil
Author :
Yang, Tao ; Yong, Huang ; Zhi, Wei ; Guangyuan, Liu
Author_Institution :
State Key Lab. of Aerodynamics, Mianyang, China
Abstract :
The periodical shock oscillations phenomenon induced by transonic shock/turbulence boundary layer interaction is a major cause of transonic buffet. Detached Eddy Simulation (DES) method is applied to study the self-sustained shock oscillations phenomenon of SC (2)-0714 supercritical airfoil in this paper. The periodic shock motion on the upper surface of the airfoil is predicted with the DES method in calculations. The effects of Reynolds number on the shrinkage-reduce frequency of the shock motion, mean shock position and coefficients of fluctuating pressures are also studied in the paper.
Keywords :
aerodynamics; boundary layer turbulence; fluid oscillations; shock waves; transonic flow; DES method; Reynolds number; detached eddy simulation; pressure fluctuation; shock motion; shock oscillations; shrinkage-reduce frequency; supercritical airfoil; transonic buffet; transonic shock-turbulence boundary layer interaction; Atmospheric modeling; Automotive components; Electric shock; Fluctuations; Mathematical model; Oscillators; Shock waves; DES Method; Shock Oscillations; Supercritical Airfoil; Transonic Shock Boundary Interaction;
Conference_Titel :
Intelligent System Design and Engineering Application (ISDEA), 2012 Second International Conference on
Conference_Location :
Sanya, Hainan
Print_ISBN :
978-1-4577-2120-5
DOI :
10.1109/ISdea.2012.625
