摘要
畸形波是一种波高极大的极端非线性波浪,容易对海洋结构物产生巨大破坏。基于畸形波生成机制和水槽自定义造波方法,探讨了畸形波在实验室波浪水槽中的重构方法,主要涉及造波机电压信号的调制解调和迭代优化。在水槽中实现了色散聚焦畸形波典型工况。结果表明,该重构方法能够准确快速地模拟所需的畸形波波面,可为畸形波实验研究提供参考。
Freak waves are extremely nonlinear waves with extremely wave heights,which can easily cause huge damage to marine structures.Based on the generation mechanism of the freak wave and the customed wave-making method,the reconstruction method of freak wave in laboratory wave flume are elaborated in detail,which mainly involves the modulation and demodulation process and linear iterative optimization of the wave maker voltage signals.Then,the typical condition of dispersive focused freak wave wasrealized in the wave flume.The result indicates that the reconstruction method can accurately and quickly simulate the required freak wave elevations,which can provide a reference for the experimental study of freak waves.
作者
秦淑芳
刘亚伊
张海明
刘浩浪
曹力玮
QIN Shufang;LIU Yayi;ZHANG Haiming;LIU Haolang;CAO Liwei(Key Laboratory of Ministry of Education for Coastal Disaster and Protection,Costal and Offshore Engineering,Hohai University,Nanjing 210098,China;College of Harbor,Costal and Offshore Engineering,Hohai University,Nanjing 210098,China;Water Affairs Bureau River Management Office of Wujiang District,Suzhou 215200,Jiangsu,China)
出处
《实验室研究与探索》
CAS
北大核心
2021年第1期7-10,21,共5页
Research and Exploration In Laboratory
基金
国家自然科学基金项目(51579091,U1706230)。
关键词
畸形波
实验室重构
自定义造波
色散聚焦
freakwave
laboratory reconstruction
customed wave-making
dispersive focusing
