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宁德志
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主要任职: 建设工程学院副院长

其他任职: 海岸和近海工程国家重点实验室主任

性别: 男

毕业院校: 大连理工大学

学位: 博士

所在单位: 建设工程学院

学科: 港口、海岸及近海工程. 流体力学

办公地点: 海岸和近海工程国家重点实验室A309

联系方式: 0411-84708267

电子邮箱: dzning@dlut.edu.cn

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当前位置: 中文主页 >> 科学研究 >> 论文成果
Analytical Solution of a Wave Diffraction Problem on a Submerged Cylinder

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论文类型: 期刊论文

发表时间: 2014-01-01

发表刊物: JOURNAL OF ENGINEERING MECHANICS

收录刊物: SCIE、Scopus

卷号: 140

期号: 1

页面范围: 225-232

ISSN号: 0733-9399

关键字: Submerged cylinder; Submerged plate; Analytical solution; Wave force; Eigenfunction expansion

摘要: Based on the methods of variable separation and matching eigenfunction expansion for the velocity potential, an analytical solution is developed for a wave diffraction problem on a submerged vertical cylinder in finite water depth. It is validated by comparison with the results from a higher-order boundary-element method and convergent examinations on the number of expanding models. Numerical examinations are carried out to investigate the influences of submerged depth, cylinder length, and water depth. The wave forces on the submerged cylinder are decreased with the increase of submerged depth. Compared with a floated cylinder, the surge force is always small, whereas the heave force and pitch moment may be larger than those on the floated cylinder at some frequencies. The influence of the cylinder length is also analyzed for surge, heave, and pitch results.

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