Time-domain numerical research of the hydrodynamic characteristics of a trimaran in calm water and regular waves
Time-domain numerical research of the hydrodynamic characteristics of a trimaran in calm water and regular waves
复制标题
静水和规则波中三体船水动力特性时域数值研究
DOI：
10.1016/j.oceaneng.2019.106669
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发表时间：
2019-12
影响因子：
5
通讯作者：
Li Yulong
中科院分区：
文献类型：
--
作者：
Deng Rui;Luo Fuqiang;Wu Tiecheng;Chen Siyuan;Li Yulong
作为一种特殊类型的高速船舶，trimanran的水动力性能尚未完全了解，仍在研究中。本文建立了基于RANS的粘性方法，研究了静水中的阻力、附加阻力和不同波幅的首波中的运动响应。数值模拟结果与实验数据吻合较好。此外，还分析了静水中船体姿态对阻力的影响、波浪幅值对附加阻力的影响以及运动响应。结果表明，高速航行时，船体姿态对三体船在静水中的阻力有显著影响，但由于自由水面和支腿阻力的计算错误，如果忽略船体姿态，三体船在静水中的阻力会被低估。结果表明，中心船体引起的附加阻力占总附加阻力的主要部分，附加阻力的无量纲值随波浪振幅的增大而减小，而波浪振幅对垂荡和纵摇运动的无量纲结果影响不显著。
As a special type of high-speed vessel, the hydrodynamic performance of trimanran is not yet fully understood and is still under investigation. In this paper, a viscous method is established based on RANS to study the resistance in calm water, added resistance and motion response in head waves of various wave amplitudes. Results from numerical simulation show satisfactory agreement with the experimental data. In addition, the effect of hull attitude on resistance in calm water and the effect of wave amplitude on added resistance, as well as motion response are analysed. The results show that the resistance of the trimaran in calm water is significantly influenced by the hull attitude at high speed, however, this resistance could be underestimated if the ship attitude is ignored because of the miscalculation of the free surface and the resistance of outriggers. It is found that the added resistance induced by the center hull composes the dominant part of the total added resistance and the non-dimensional value of added resistance is decreased with wave amplitude, while the influence of wave amplitude on the non-dimensional results of heave and pitch motion is not significant.
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影响因子：
1.3
作者：
K. A. Vakilabadi;M. Khedmati;M. Seif
通讯作者：
K. A. Vakilabadi;M. Khedmati;M. Seif
DOI：
10.1016/j.proeng.2015.11.199
发表时间：
2015
期刊：
Procedia Engineering
影响因子：
--
作者：
R. Deng;Li Chao;Hu Debo;G. Zhou
通讯作者：
R. Deng;Li Chao;Hu Debo;G. Zhou
影响因子：
5
作者：
Yu Wei;Chen Xu-jun;Wu Guang-huai;Liu Junyi;Hearn Grant E.
通讯作者：
Hearn Grant E.
影响因子：
2.1
作者：
K. Hebblewhite-;P. Sahoo;L. Doctors
通讯作者：
K. Hebblewhite-;P. Sahoo;L. Doctors
DOI：
10.1016/b978-008043950-1/50019-3
发表时间：
2001
期刊：
--
影响因子：
--
作者：
C. Bertorello;D. Bruzzone;P. Cassella;Igor Zotti-
通讯作者：
C. Bertorello;D. Bruzzone;P. Cassella;Igor Zotti-