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个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:水利工程系
学科:港口、海岸及近海工程
办公地点:海洋工程研究所A400
电子邮箱:yuxma@dlut.edu.cn
Interactions of two identical wave trains with a relative separation angle of 24A degrees
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论文类型:期刊论文
发表时间:2017-08-01
发表刊物:JOURNAL OF OCEAN UNIVERSITY OF CHINA
收录刊物:SCIE、Scopus
卷号:16
期号:4
页面范围:683-688
ISSN号:1672-5182
关键字:wave-wave interactions; wave breaking; bidirectional propagation
摘要:Interactions between two identical monochromatic wave trains with a relative separation angle of 24A degrees were experimentally investigated in a well-designed 'X' configuration. Wave trains with different amplitudes and frequencies were generated. The results demonstrated that the interaction was strongly dependent on both wave amplitude and frequency. For nonbreaking and lower-frequency cases, the wave trains can approximately reestablish their initial state following the interaction. However, for larger waves, the interaction was enhanced, distorting the surfaces significantly - the wave trains were no longer two-dimensional after the encounter. During the interaction process, there was an obvious increase in wave height, reaching a maximum amplification in the middle of the interaction region that was approximately 1.55 times the initial height. Furthermore, the images captured by high-speed cameras illustrated that two wave trains entered the interaction region at the same time and then merged during the interaction process, resulting in an increase in wave amplitude. The combined wave crest was initially composed of two straight segments with a relative angle of 24A degrees and gradually morphed into a single segment as is evident in the plan view. The wave then broke in the downstream, still within the interaction region, exhibiting a crescent pattern along the crest.