Approximate calculation method of hydrodynamic solution of an array with a large number of truncated cylinders

被引：3

作者：

Zeng, Xiaohui ^{[1
,2
,3
]}

Wang, Guangyuan ^{[1
,2
,4
]}

Kang, Yuanshun

Xue, Zhen ^{[5
]}

Yu, FaJun ^{[5
]}

机构：

[1] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China

[3] Dalian Univ Technol, Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

[4] MOT, Tianjin Res Inst Water Transport Engn, Tianjin 300000, Peoples R China

[5] Harbin Engn Univ, Qingdaotemp Innovat & Dev Base, Qingdao 266000, Peoples R China

来源：

OCEAN ENGINEERING | 2022年 / 257卷

基金：

中国国家自然科学基金;

关键词：

Approximate calculation method; Truncated cylinders; Added damping coefficients; Added mass coefficients; CIRCULAR-CYLINDERS; WATER-WAVES; LONG ARRAY; DIFFRACTION; SCATTERING; RADIATION; COEFFICIENTS; BODIES; MATRIX; LOADS;

D O I：

10.1016/j.oceaneng.2022.111693

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

Based on linear wave theory, the hydrodynamic problem of the array of truncated cylinders with relative motion is studied, and the calculation formulas of hydrodynamic force/moment, added mass, and added damping coefficients are given. Firstly, the effect of the evanescent mode on the hydrodynamic coefficients are studied by the truncated two-cylinders as an example. And based on this, an approximation formula for the heave added mass of the truncated two-cylinders is given. After that, a fast formula for calculating the added mass coefficient of an oscillating cylinder of the rectangularly arranged array with a large number of cylinders caused by evanescent mode is presented. Finally, the approximate calculation method of the hydrodynamic coefficients for a large number of rectangular arrays with a given amplitude are summarized. The method is able to efficiently solve the hydrodynamic coefficients of the array with a large number of cylinders, providing an idea to evaluate the performance of such models in engineering.

引用

页数：16

共 49 条

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[2]

[Anonymous], 1974, P INT S DYN MAR VEH

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