| 二维自由面条件和辐射条件的数值模拟 |
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| 引用本文： | 孙善春,戴遗山,王建方.二维自由面条件和辐射条件的数值模拟[J].海洋工程,2004,22(2):17-25. |
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| 作者姓名： | 孙善春 戴遗山 王建方 |
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| 作者单位： | 1. 中船重工第七一0研究所,湖北,宜昌,443000
2. 哈尔滨工程大学,船舶工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 在时域内对二维自由面条件和远方辐射条件进行数值模拟，自由面条件采用先积分后离散的处理方式，远方条件采用匹配积分方程的方法和透射理论的人工边界方法处理。分别计算了圆柱与水面直交和斜交时的水动力系数以及摇板造波问题的速度势，计算结果与文献值和理论值符合程度良好。
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| 关 键 词： | 匹配法 多次透射公式 人工边界 自由面条件 |
| 文章编号： | 1005-9865(2004)02-0017-09 |
| 修稿时间： | 2003年9月2日 |
Numerical simulation of two-dimensional free surface condition and radiation condition |
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| SUN Shan-chun,DAI Yi-shan,WANG Jian-fang.Numerical simulation of two-dimensional free surface condition and radiation condition[J].Ocean Engineering,2004,22(2):17-25. |
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| Authors: | SUN Shan-chun DAI Yi-shan WANG Jian-fang |
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| Abstract: | A new numerical simulation method of the free surface condition is used in this paper. We transform the linear free surface condition from the differential form into the integral form by twice integrating the equation with respect to time. The discrete format of the expression is employed by using discrete segments on free surface. Two simulation methods of radiation condition are used in this paper. One is the matching method and the other is the MTF (multi-transmitting formula) method. Comparisons are made between the present methods and published results for wall and non-wall sided circular cylinders in heave and sway. Theoretical and numerical results for two-dimensional waves generated by a rocker flap wavemaker are also given. In all cases the comparisons are excellent. |
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| Keywords: | matching method multi-transmitting formula artificial boundary condition free surface condition |
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