| CFD／CSD紧耦合及新型动网格方法在气动弹性模拟中的应用 |
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| 引用本文： | 陈龙,伍贻兆,夏健.CFD／CSD紧耦合及新型动网格方法在气动弹性模拟中的应用[J].计算力学学报,2011,28(5):807-812. |
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| 作者姓名： | 陈龙 伍贻兆 夏健 |
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| 作者单位： | 南京航空航天大学 航空宇航学院,南京 210016;南京航空航天大学 航空宇航学院,南京 210016;南京航空航天大学 航空宇航学院,南京 210016 |
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| 摘 要： | 研发出一套基于紧耦合的CFD／CSD耦合方法和程序。非定常流场求解采用混合网格有限体积方法，时间离散采用基于LU-SGS隐式格式的双时间步长法。通过求解雷诺平均Navier—Stokes方程模拟了三维机翼的跨音速气动弹性现象。得到了其颤振边界，与风洞实验结果吻合较好，验证了方法和程序的有效性和实用意义。同时将Delau...
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| 关 键 词： | 流固耦合 气动弹性 颤振 动网格 紧耦合 |
| 收稿时间： | 8/5/2009 12:00:00 AM |
| 修稿时间： | 2010/12/5 0:00:00 |
CFD/CSD closely coupled and new dynamic grid method in application of aeroelastic simulation |
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| CHEN Long,WU Yi-zhao and XIA Jian.CFD/CSD closely coupled and new dynamic grid method in application of aeroelastic simulation[J].Chinese Journal of Computational Mechanics,2011,28(5):807-812. |
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| Authors: | CHEN Long WU Yi-zhao and XIA Jian |
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| Institution: | Institute of Aero. & Astro., Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Institute of Aero. & Astro., Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;Institute of Aero. & Astro., Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | The CFD/CSD coupling method and program based on closely coupling are developed. Hybrid grid finite volume method is used to solve unsteady flow fields, and the dual time stepping method based on LU-SGS implicit scheme is used in temporal discretization. 3D wing's aeroelastic phenomenon is simulated by solving Reynolds-averaged Navier-Stokes equations; the flutter boundary is calculated and agrees well with experimental data. The validity and practicality of this method and program are verified. Based on the Delaunay map and spring analogy, hybrid dynamic grid method is deployed to aeroelastic calculation; the effect of turbulence models in aeroelastic simulation is also studied. |
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| Keywords: | fluid structure interaction aeroelastic flutter dynamic grid closely coupled |
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