| 流固偶合运动的边界元法 |
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| 引用本文： | 臧跃龙,嵇醒.流固偶合运动的边界元法[J].应用力学学报,1992,9(3):1-7. |
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| 作者姓名： | 臧跃龙 嵇醒 |
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| 作者单位： | 西安交通大学
(臧跃龙)，同济大学(嵇醒) |
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| 摘 要： | 本文给出了流固偶合运动(包括物体散射辐射及偶合运动)的边界元法理论和应用.对于散射问题,求出了物体引起的散射势及入射波作用于物体的载荷.对于辐射问题,求出了辐射势及物体在流体中运动的附加质量和附加阻尼.偶合问题包括求其中包含的散射势和辐射势以及作用于物体之上的散射力、物体的附加质量、附加阻尼、物体在入射波作用下的运动.在偶合运动问题中,本文采取了边界积分方程与物体在流体中的运动方程联立求解的方法,并将其运用到边界元法的数值过程中.所编制的程序有较高的精度.最后给出了数值计算结果与理论解的比较.
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| 关 键 词： | 边界元法 液体－固体 界面 流体力学 |
Coupled Motion Analysis of Fluid and Solid by Boundary Element Method |
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| Zang Yuelong.Coupled Motion Analysis of Fluid and Solid by Boundary Element Method[J].Chinese Journal of Applied Mechanics,1992,9(3):1-7. |
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| Authors: | Zang Yuelong |
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| Institution: | Zang Yuelong(Xian Jiaotong University) Ji Xing(Tongji University) |
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| Abstract: | This paper presents a boundary element method for coupled motion analysis of fluid and solid. The numerical procedure includes the analysis of diffraction problem, radiation problem and the coupled motion problem of a floating body in/on the sea. Numerical results of diffraction problem and coupled motion problem are presented for verification. The numerical procedure can be easily applied to multi-body system. Using finite element method to obtain the motion modes of an off-shore structure , the numerical procedure can also be applied to the off-shore structure. |
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| Keywords: | boundary element method potential function coupled motion analysis |
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