马蹄波波形几何参数的试验研究  

Experimental study on geometric parameters of crescent waves

作　　者：严开 邹志利[1] YAN Kai;ZOU Zhili(State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学港口海岸及近海工程国家重点实验室,辽宁大连116024

出　　处：《海洋工程》2018年第4期70-77,共8页The Ocean Engineering

基　　金：国家自然科学基金项目(11272078)

摘　　要：为了研究真实海洋表面马蹄波的波形特征,通过物理模型试验研究了马蹄波的波形特征参数。研究中通过引入满足共振条件的扰动波成功在试验室内产生了马蹄波,测量和分析了马蹄波的波面升高和水平弧形波峰的几何特征,定义了新的垂向几何参数和水平几何特征参数,给出了不同水深情况下的这些参数的结果,得出了水深对马蹄波几何形态的影响。理论分析了马蹄波的横向结果,并与试验测量结果和弧形处理结果进行了对比。结果表明,马蹄波波形受水深影响较大;水深越浅,马蹄波的波面形状越接近椭圆余弦波,横向波长也越大。In order to study the wavefor^n features of crescent waves in the sea, physical model experiments are carried out to study the geometric characteristics of crescent waves. In this study, the crescent waves are successfully generated in the laborator＇ by introducing the perturbation wave satisfying the resonance condition, the wave characteristics of the crescent wave and the geometric characteristics of the horizontal arc crest are measured and analyzed, and new vertical geometric parameters and horizontal geometric are defined. The results of these parameters under different water depths are presented, reflecting the influence of water depth on the geometrical from of the crescent wave. The transverse wave lengths of the crescent wave are analyzed theoretically, and the results are compared with the experimental results and the results of the arc treatment. The results show that the shape of the crescent wave is greatly influenced by water depth. The shallower the water depth is , the closer the wave shape of the crescent wave is to the elliptic cosine wave and the larger the transverse wavelength is.

关 键 词：马蹄波 STOKES波 波形特征 面积系数 横向波长 

分 类 号：TV731.22[水利工程—水利水电工程]