预处理方法在叶轮机械三维数值模拟中的应用

Appl ication of preconditioning method in 3D numericalsimulation of turbomachinery

1.
National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
2.
School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要: 应用预处理方法求解三维可压缩流动Navier-Stokes方程, 发展了一种适用于叶轮机械的既可以求解跨声速流动也可以求解不可压流动的数值模拟方法, 对NASA Rotor67和北航低速大尺寸压气机算例进行了计算, 计算结果与实验数据相吻合, 表明本文采用的预处理方法具有较大的工程实用性.
- 航空、航天推进系统 /
- 叶轮机械 /
- 预处理 /
- Navier-Stokes方程
Abstract: A preconditioning technique for solving 3-D compressible Navier-Stokes equations is developed to simulate both transonic and incompressible flows in turbomachinery.Computations over NASA Rotor 67 and a low-speed large-scale compressor stage in Beijing University of Aeronautics and Astronautics were performed and the results are in accordance with experimental data,it shows that the method presented is practical for engineering usage.
- aerospace propulsion system /
- turbomachinery /
- preconditioning /
- Navier-Stokes equations

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