为获得浮式防波堤腔体内部波浪振荡对其消波效果的影响，基于CFD技术，建立含局部开口腔室结构浮式防波堤内外流场共同作用下的水动力响应数值模拟方法，通过试验数据对比分析，验证数值计算准确性。结果表明，浮式防波堤腔体内部波浪振荡可以有效提升消波效果，但腔内发生大幅波浪共振时，消波效果并不理想。在此基础上，考虑不同腔体模型对腔内波浪振荡和消波性能的影响，研究发现，在本文模型数据范围内，浮式防波堤局部开口腔室个数增多，使得腔内波浪振荡加剧，浮式防波堤消波效果提升。
In order to obtain the influence of wave oscillation in the cavity of floating breakwater on its wave attenuation effect, a numerical simulation method of hydrodynamic response under the combined action of internal and external flow fields of floating breakwater with partial opening cavity structure is established based on CFD technology.The accuracy of numerical calculation is verified through the comparative analysis of test data. The results show that the wave oscillation in the cavity of the floating breakwater can effectively improve the wave attenuation effect, but the wave attenuation effect is not ideal when there is a large wave resonance in the cavity.On this basis, considering the influence of different cavity models on the wave oscillation and wave attenuation performance, it is found that within the data range of the model in this paper, the number of local opening chambers of the floating breakwater increases, which makes the wave oscillation in the cavity intensified and the wave attenuation effect of the floating breakwater improved.
2021,43(8): 93-98 收稿日期：2020-05-08
DOI：10.3404/j.issn.1672-7649.2021.08.018
分类号：U661.32
基金项目：国家自然科学基金资助项目(51861130358)
作者简介：沈勇(1994-),男,硕士研究生,研究方向为船舶与海洋结构物水动力分析
参考文献：
[1] CHUN-YAN JI, KE Y, YONG C, et al. Numerical and experimental investigation of interactions between free-surface waves and a floating breakwater with cylindrical-dual/rectangular-single pontoon[J]. 中国海洋工程(英文版), 2018
[2] 陈力. 浮式防波堤的试验研究[D]. 上海：上海交通大学, 2008.
[3] 沈雨生, 周益人, 潘军宁, 等. 浮式防波堤研究进展[J]. 水利水运工程学报, 2016(5): 124–132
[4] FALTINSEN OM. Sea loads on ships and offshore structures[M]. Cambridge: Cambridge University Press, 1990.
[5] BARREIRA R, SPHAIER S H, MASETTI I Q. Behavior of a mono-column structure (monobr) in waves[C]//In: Proceedings of 24th International Conference on Offshore Mechanics and Arctic Engineering. New York: American Society of Mechanical Engineers, 2005: 867−873.
[6] ZHOU Huawei, ZHANG Hongsheng. Radiation and diffraction analysis of a cylindrical body with a moon pool[J]. Journal of Hydrodynamics, 2013, 25(2): 196–204
[7] 刘利琴, 邱雨, 张永恒, 等. Spar平台垂荡-纵摇与月池内流体垂向振动的耦合运动研究[J]. 振动与冲击, 2016, 35(19): 113–118
[8] 邹康, 桂满海, 罗良. 月池水动力特性及其对船舶运动的影响研究[J]. 船舶与海洋工程, 2017(5)
[9] 康庄. 月池流噪声及水动力特性的试验研究[D]. 哈尔滨：哈尔滨工程大学, 2006.
[10] 王鑫, 刘亚东. 船体垂荡运动及环境波高对月池内流体的影响[J]. 船舶工程, 2019(5).
[11] 姜胜超, 宗智, 邹丽. 波浪对并联双箱作用的耦合水动力共振分析[J]. 海洋工程装备与技术, 2017(3)
[12] 刘春阳. 波浪作用下双浮体系统水动力特性的实验和数值研究[D]. 大连：大连理工大学.
[13] 苏绍娟, 王有志, 王天霖, 等. 数值波浪水槽波浪传递性能研究[J]. 舰船科学技术, 2020, 42(9): 61–65
