| 船舶兴波问题面元法计算中自由面离散的稳定性分析 |
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| 引用本文： | 高高. 船舶兴波问题面元法计算中自由面离散的稳定性分析[J]. 水动力学研究与进展(A辑), 2002, 17(1): 53-60 |
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| 作者姓名： | 高高 |
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| 作者单位： | 武汉理工大学交通学院,湖北武汉,430063 |
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| 基金项目： | 湖北省自然科学基金资助项目 (99J0 17)，交通部通达计划 |
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| 摘 要： | 本文通过多变量的连续及离散Fourier分析，研究了船舶兴波问题中面元法计算的稳定性，对于计及流体域外奇点分布的自由面面元离散方式建立了满足稳定性要求的准则，给出了以网格弗氏数F△及网格纵横尺度比α为参数的稳定性限界线。
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| 关 键 词： | 船舶兴波 自由面离散 面元法 离散Fourier分析 隐定性限界线 |
| 文章编号： | 1000-4874(2002)01-0053-08 |
Stability analysis of free surface discretization in ship wave problem |
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| GAO Gao. Stability analysis of free surface discretization in ship wave problem[J]. Chinese Journal of Hydrodynamics, 2002, 17(1): 53-60 |
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| Authors: | GAO Gao |
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| Abstract: | A stability analysis of free surface discretization in ship wave-making calculation is made in this article. Using multivariable continuous and discrete Fourier analysis, the discrete dispersion relation is derived, a criterion for free surface discretization meeting the requirements of stability, taking account of singularity distributions outside domain, is established, and some stable diagrams, characterized by the grid Froude number and panel aspect ratio, for free surface discretized with panels are presented. |
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| Keywords: | ship wave free surface discretization stability analysis |
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