摘要
为更好地模拟波浪的非线性变化过程,给出了在实验室水槽中采用波浪聚焦产生极限波浪的方法.针对聚焦波浪的特点,采用波峰聚焦和波谷聚焦相加减的方法分析了其谐波分量的特性,结果表明,波浪之间的相互作用,导致低频和高频谐波分量的产生;非线性波浪随着输入波幅的增大而增大,高阶分量的频率范围随着输入频率范围的增大而增大.
A method to generate a large transient wave through the focusing of the component waves in experiment flume is described. It can well represent the nonlinear transformation of waves. For the characteristics of focused waves, a method of the addition and subtraction of the wave crest and wave trough focusing is introduced, and the speciality of the harmonic waves is analyzed. The results show that the lower and higher harmonics can be generated because of the interaction of the component waves. The nonlinear waves increase with the incident wave amplitude and the frequency width.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
2009年第6期951-957,共7页
Journal of Dalian University of Technology
基金
国家自然科学基金资助项目(50379002)
新世纪优秀人才支持计划资助项目
关键词
聚焦波
谐波
非线性
focused waves
harmonic waves
non-linearity
