| 激波-多涡列-声场相互作用及其POD分析 |
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| 引用本文： | 许东洋,关晖,吴锤结. 激波-多涡列-声场相互作用及其POD分析[J]. 中国科学:物理学 力学 天文学, 2012, 0(1): 78-94 |
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| 作者姓名： | 许东洋 关晖 吴锤结 |
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| 作者单位： | [1]大连理工大学工业装备结构分析国家重点实验室,大连116024 [2]大连理工大学航空航天学院,大连116024 [3]解放军理工大学理学院数理系,南京211101 |
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| 基金项目： | 国家自然科学基金资助项目（批准号：11072053） |
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| 摘 要： | 采用5阶WENO格式,通过数值求解二维非定常欧拉方程,模拟了激波与四涡组成的涡列的相互作用过程.通过研究马赫数为1.05的激波与强度为0.25的多涡列相互作用,进一步揭示了激波-涡列相互作用的动力学特性以及声波的产生过程.
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| 关 键 词： | 激波 四涡涡列 相互作用 声波 POD分析 |
A shock wave,rows of vortices/sound wave interaction and POD analysis |
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| XU DongYang,GUAN Hui,＆WU ChuiJie. A shock wave,rows of vortices/sound wave interaction and POD analysis[J]. SCIENCE CHINA Physics, Mechanics & Astronomy, 2012, 0(1): 78-94 |
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| Authors: | XU DongYang GUAN Hui ＆WU ChuiJie |
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| Affiliation: | 1,2＊ 1State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian 116024,China;2School of Aeronautics and Astronautics,Dalian University of Technology,Dalian 116024,China;3Deptment of Mathematic＆Physics,School of Science,PLA University of Science and Technology,Nanjing,211101,China |
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| Abstract: | The interaction between a shock wave and a vortex street composed of four vortices is simulated through solving the two-dimensional,unsteady compressible Euler equation using a fifth order weighted essentially non-oscillatory finite difference scheme.In our simulation,the Mach number of the shock wave is prescribed to be 1.05,and the Mach number of a vortex is set to be 0.25.The purpose of the study is to characterize and understand the shock structures and the mechanism of sound generation for complex interactions further. |
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| Keywords: | shock wave vortex street composed of four vortices interaction sound wave POD |
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