摘要
应用高收敛率、高精度和高分辨率的数值计算方法，通过求解全三维可压缩雷诺平均的Navier－Stokes方程和q－ω低雷诺数双方程湍流模型，数值模拟了VKI跨音速叶栅内的三维流场，对叶棚内的三维流动结构进行了细致的分析。计算表明，本文采用的计算方法可以精确模拟叶轮机械内部的复杂流动。
Numerical simulation of three-dimensional flow fields is presented for the VKI (Von Karman Institute) Iransonic Plane Turbine Cascade. The flow is modeled as compressible,viscous, steady and turbulent. The fourth-order high resolution MUSCL TVD scheme and new LU-type implicit scheme are used for solving the Reynolds-averaged Navier-Stokes equatons and q-ω low-Reynolds-number two-equation turbulence model. The three-dimensional flow structure in the cascade is analyzed particularly. It is indicated that the present algorithm can be used to accurate simulation of the complex flow field in the turbomachinery.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1999年第5期553-557,共5页
Journal of Engineering Thermophysics
基金
国家自然科学基金
关键词
NS方程
湍流模型
TVD格式
极限流线
透平叶栅
Navier-Stokes equations, q-ω turbulent model, TVD scheme, limited stream line
