| 低速流数值模拟的低耗散预处理格式 |
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| 引用本文： | 曹宁,吴颂平.低速流数值模拟的低耗散预处理格式[J].航空动力学报,2011,26(3):524-529. |
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| 作者姓名： | 曹宁 吴颂平 |
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| 作者单位： | 北京航空航天大学,航空科学与工程学院,北京,100191;国家计算流体力学实验室,北京,100191 |
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| 摘 要： | 在预处理Roe格式中加入可调参数,给出了一种低耗散预处理Roe格式,并分析了可调参数的取值规律.在极低速区,低耗散预处理Roe格式反应了流动的实际耗散;在与来流速度相近的区域,低耗散预处理R0e格式可以保证流场的稳定性.对低马赫数、低雷诺数定常圆柱绕流和低马赫数、高雷诺数NACA0012翼型绕流所做的数值实验,得到了比...
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| 关 键 词： | 数值方法 定常流 圆柱绕流 预处理方法 翼型 |
| 收稿时间： | 2010/9/16 0:00:00 |
| 修稿时间： | 2010/11/30 0:00:00 |
Low-diffusion preconditioning scheme for numerical simulation of low-speed flows |
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| CAO Ning and WU Song-ping.Low-diffusion preconditioning scheme for numerical simulation of low-speed flows[J].Journal of Aerospace Power,2011,26(3):524-529. |
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| Authors: | CAO Ning and WU Song-ping |
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| Institution: | CAO Ning1,2,WU Song-ping1,2(1.School of Aeronautics Science and Engineering,Beijing University of Aeronautics and Astronautics,Beijing 100191,China,2.National Laboratory for Computational Fluid Dynamic,China) |
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| Abstract: | A low-diffusion preconditioning Roe scheme was proposed by using an adjustable parameter in preconditioning Roe scheme to control the numerical dissipation and the adjustable parameter value rules.The low-diffusion preconditioning Roe scheme reflected the real physical dissipation in the extremely low-speed zone.In the region similar to the inflow speed,low-diffusion preconditioning Roe scheme could ensure the stability of the flow field.The low Mach/low Reynolds number steady solutions of viscous flow pass... |
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| Keywords: | numerical methods steady flow flow past a cylinder preconditioning method airfoil |
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