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极限波浪运动特性的非线性数值模拟

, PP. 126-132

Keywords: 数值波浪水槽,镜像格林函数,高阶边界元,完全非线性,极限波浪

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Abstract:

利用时域高阶边界元方法建立了模拟极限波浪运动的完全非线性数值模型,其中自由水面满足完全非线性自由水面条件.采用半混合欧拉-拉格朗日方法追踪流体瞬时水面,运用四阶Runge-Kutta方法更新下一时间步的波面和速度势,同时应用镜像格林函数消除水槽两个侧面和底面上的积分.研究中利用波浪聚焦的方法产生极限波浪,并且在水槽中开展了物理模型实验,将测点试验数据与数值结果进行了对比,两者吻合得很好.对极限波浪运动的非线性和流域内速度分布进行了研究.

References

[1]  BALDOCK T E, SWAN C, TAYLOR P H. A laboratory study of nonlinear surface waves on water[J]. Phil Trans R Soc Lond (A), 1996, 354:649-676.
[2]  JOHANNESSEN T, SWAN C. A laboratory study of the focusing of transient and directionally spread surface water waves[J]. Proc R Soc Lond (A), 2001, 457:971-1006.
[3]  JOHNNESSEN T B, SWAN C. Nonlinear transient water waves: Part 1. A numerical method of computation with comparisons to 2-D laboratory data [J]. Appl Ocean Res, 1997, 19:293-308.
[4]  BATEMAN W J D, SWAN C, TAYLOR P H. On the calculation of the water particle kinematics arising in a directionally spread wavefield [J]. Journal of Computational Physics, 2003, 186:70-92.
[5]  SCHaFFER H A. Second-order wavemaker theory for irregular waves [J]. Ocean Engineering, 1996, 21(1): 47-88.
[6]  NEWMAN J N. Approximation of free-surface Green functions [M] // MARTIN P A, WHICKAM G R, eds. Wave Asympotics. Cambridge: Cambridge University Press, 1992 : 107-142.
[7]  SHE K, GREATED C A, EASSON W J. Experimental study of three-dimensional wave kinematics[J]. Applied Ocean Research, 1997, 19:329-343.
[8]  BORTHWICK A G L, HUNT A C, FENG T, et al. Flow kinematics of focused wave groups on a plane beach in the UK costal research facility[J]. Coastal Engineering, 2006, 53:1033-1044.
[9]  FENTON J D , RIENECKER M M. A Fourier method for solving nonlinear water-wave problems: application to solitary-wave interactions [J]. J Fluid Mech, 1982, 118:411-443.
[10]  宁德志.[D].大连:大连理工大学,2005.
[11]  李玉成 滕斌.波浪对海上建筑物的作用[M].北京:海洋出版社,2002.
[12]  NING De-zhi,TENG Bin. Numerical simulation of fully nonlinear irregular wave tank in three-dimension [J]. International Journal for Numerical Methods in Fluids, 2007,53(12): 1847-1862.

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