Capillary-gravity ship wave patterns

作     者：Hui Liang Xiaobo Chen 

作者机构：Deepwater Technology Research Centre(DTRC)Bureau VeritasSingapore College of Shipbuilding EngineeringHarbin Engineering UniversityHarbin 150001China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2017年第29卷第5期

页      面：825-830页

核心收录：

学科分类：07[理学] 0707[理学-海洋科学] 08[工学] 080103[工学-流体力学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：The first author is indebted to Prof. Zhi Zong for his supervision on anearlywork of the subject when the first author was studying in Dalian University of Technology 

主　　题：Ship waves wave pattern gravity dominant waves capillarity dominant waves 

摘      要：Ship wave pattern is a fascinating research topic in the fields of marine hydrodynamics and water waves. Within the pure-gravity wave theory, the ship wave pattern composed of transverse waves and divergent waves appearing on the downstream is confined within a sector symmetrical about the ship track with a half-angle 19°28＇. However, when the surface tension is accounted for, the wave pattern is greatly modified especially at a low translating speed. Besides the minimum speed of capillary waves c_（min）= 0.23 m/s below which waves cannot be generated, there is another critical speed c_（div）= 0.45 m/s associated with the disappearance of divergent waves. In the present paper, the wave patterns created by a steadily translating source are studied, and they are examined with the crestlines obtained from the asymptotic analysis.