摘要
采用二阶时间精度的LU-SGS-τTS方法进行时间推进求解Navier-Stokes方程组,用基于Roe的六阶对称TVD格式离散对流项,并采用Baldwin-Lomax和Spalart-Allmaras模式对平板边界层、Aerospatial A-profile翼型低速大迎角及RAE-2822翼型跨声速激波/边界层干扰流动进行数值分析,自动捕捉流动的转捩过程,获取了有意义的结果.
The Navier-Stokes equations are solved with the second-order LU-SGS-τTS implicit time-stepping method. The sixth-order symmetric TVD scheme with fifth-order WENO interpolation based on Roe is applied to the convection terms. A boundary layer flow around a flat plate, a low speed flow around the Aerospatial A-profile at high incidence and a transonic flow with shock/boundary interaction around RAE2822 airfoil are computed by Baldwin-Lomax and Spalart-Allmaras models with the transition criterion, respectively. The results show that the approaches capture the transition automatically.
出处
《计算物理》
CSCD
北大核心
2006年第1期61-65,共5页
Chinese Journal of Computational Physics
基金
中国博士后科学基金
国家自然科学基金(10502030)资助项目
关键词
LU—SGS—τTS方法
对称TVD格式
转捩判据
LU-SGS-τTS time-stepping method
sixth-order symmetric TVI） scheme
transition criterion
