上海交通大学 海洋智能装备与系统教育部重点实验室; 海洋工程国家重点实验室; 高新船舶与深海开发装备协同创新中心, 上海 200240
发布日期:2020-01-06通讯作者:李英辉，男，上海市人，讲师，电话(Tel.)：021-34207165; E-mail：lyh_wcz@outlook.com.作者简介:毛立夫(1991-)，男，河南省周口市人，博士生，主要从事新型船舶开发、水动力计算等.基金资助:海洋工程国家重点实验室自主研究课题(GKZD01007)Numerical Studies on Hydrodynamic Performance of a SWATH Ship with Inclined Struts
MAO Lifu,LI Yinghui,YI HongMinistry of Education Key Laboratory of Marine Intelligent Equipment and System; State Key Laboratory of Ocean Engineering; Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China
Published:2020-01-06摘要/Abstract
摘要： 基于三维势流理论并考虑黏性阻尼，计算某斜支柱小水线面双体(I-SWATH)船在波浪中的运动响应.与常规直支柱小水线面双体船和代尔夫特372双体船进行对比，I-SWATH船具有更好的耐波性能.以此为基础，充分考虑黏性条件，通过求解雷诺平均Navier-Stokes方程并结合重叠网格方法，进一步研究该I-SWATH船在静水及规则波中的阻力性能及运动响应.计算结果表明：I-SWATH船存在波浪增阻为负值的情况，并获得了在某种程度上倾斜支柱能够利用波浪能量的结论.
关键词: 小水线面双体船； 斜支柱； 黏性阻尼； 雷诺平均Navier-Stokes 方程； 运动响应； 波浪增阻
Abstract: An unconventional small water-plane area twin-hull (SWATH) ship with inclined struts was investigated by numerical methods. The seakeeping performance was studied firstly based on the three-dimensional potential flow theory with considering viscous damping. The results show that the SWATH ship with inclined struts demonstrates improved seakeeping performances by comparison with a vertical-strut SWATH ship and the Delft 372 catamaran. Fully considering the viscous condition, 3D numerical simulations based on the Reynolds-averaged Navier-Stokes (RANS) equation and overset mesh method are carried out both in calm water and head regular waves. As negative added resistance is observed in the computational results, it can be concluded that the inclined struts could make use of wave energy to give rise to a reduction of power required in waves.
Key words: small water-plane area twin-hull (SWATH) ship; inclined struts; viscous damping; Reynolds-averaged Navier-Stokes (RANS); motion response; added resistance in wave
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