| 计算全马赫数下粘性流动的隐式算法 |
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| 引用本文： | 史万里,葛宁,SHENG Chun-hua.计算全马赫数下粘性流动的隐式算法[J].空气动力学学报,2009,27(5). |
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| 作者姓名： | 史万里 葛宁 SHENG Chun-hua |
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| 作者单位： | 1. 南京航空航天大学,能源与动力学院,南京,210016
2. Computational Simulation and Design Center Mississippi State University,MS39762 |
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| 摘 要： | 把预处理方法引入到求解三维粘性流动的Navier-Stokes方程隐式格式算法中,并应用这种方法对平板算例在层流和湍流两种不同流态下及四个不同Ma数下进行了数值模拟,计算结果与理论值及相关公式吻合,同时对比分析了有无预处理情况下的收敛性,证明了本文所采用的预处理隐式算法对于任意马赫数都是适合的,而且可以提高残差精度量级,加快收敛。
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| 关 键 词： | 预处理 隐式迭代算法 三维N-S方程 Blasius速度剖面 |
Implicit algorithms for viscous flow simulation at arbitrary Mach number |
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| SHI Wan-li,GE Ning,SHENG Chun-hua.Implicit algorithms for viscous flow simulation at arbitrary Mach number[J].Acta Aerodynamica Sinica,2009,27(5). |
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| Authors: | SHI Wan-li GE Ning SHENG Chun-hua |
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| Institution: | 1.College of Energy and Power Engineering;Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China;2.Computational Simulation and Design Center;Mississippi State University;MS 39762;United States of America. |
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| Abstract: | Two implicit numerical algorithms using a global preconditioning technique are presented for solving 3-D Navier-Stokes viscous flows.Computations were performed for both laminar and turbulent flows over a flat plate under different Mach numbers.The computed results show good agreement with the Balsius profile for the laminar flow and the Spalding of profile for the turbulent flow.The implicit numerical algorithms presented in this work are efficient,robust,and accurate for a wide range of Mach numbers.It al... |
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| Keywords: | preconditioned iterative implicit 3-D Navier-Stokes velocity profile of Blasius |
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