非结构网格下可压缩黏性流体的隐式算法

王靖宇; 葛宁; SHENG Chun-hua

非结构网格下可压缩黏性流体的隐式算法

1.
南京航空航天大学能源与动力学院,南京 210016
2.
College of Engineering,University of Toledo,OH 43606,USA

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- 文章访问数: 1471
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出版历程
- 收稿日期: 2011-07-16
- 刊出日期: 2012-06-28

Implicit algorithm for viscous compressible flow on unstructured grids

1.
College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China
2.
College of Engineering,University of Toledo,OH 43606,USA

摘要

摘要: 采用牛顿线化和Roe近似Jacobians矩阵隐式算法,实现基于非结构网格的三维定常黏性流动问题的求解.分别对平板、跨声涡轮叶片Mark-Ⅱ和CW-22这三种具有代表性的流动进行数值模拟,并详细分析了流动细节,模拟结果与理论以及实验值吻合良好,准确预测了流场内激波、二次流等重要的流动现象.验证了基于非结构网格的可压缩流体隐式计算方法对于黏性流动问题的计算是正确的.
- 非结构网格 /
- 隐式算法 /
- N-S(Navier-Stokes)方程 /
- 数值模拟 /
- CW-22涡轮叶片
Abstract: An implicit algorithm for solving three-dimensional viscous compressible flow on unstructured grids was described.Newton's method and Roe approximate scheme which was used to evaluate the flux Jacobians were chosen to solve Navier-Stokes equations.Three representative flow cases including plate,transonic turbine vane Mark-Ⅱ and CW-22 were simulated.The results of numerical simulation show favorable agreement with exact solution in theory and experimental data,and the flow phenomena such as shock and secondary flow were predicted accurately.These suggest that this unstructured implicit Navier-Stokes flow solver can predict aerodynamic performance correctly.
- unstructured grids /
- implicit algorithm /
- N-S(Navier-Stokes)equations /
- numerical simulation /
- CW-22 turbine blade

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参考文献(13)

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