利用图像聚类技术模拟波浪过顶和波浪冲击

Sara Mizar Formentin, Elisa Dallavalle, Barbara Zanuttigh
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引用次数: 0

摘要

波浪-结构相互作用过程的实验建模是一个非常复杂的问题,因为湍流条件高度非线性,包括波浪破碎和空气夹带(Stringari et al., 2021)。最近,Formentin等人(2021)证明,摄像技术可以可靠地描述波浪破碎、波浪过顶和波浪对墙壁的冲击。他们拍摄了在具有冠状墙的光滑堤坝上波浪漫过的实验室测试(Formentin等人,2018;Palma et al., 2020)使用低成本的全高清摄像机,并将应用于其记录的视频聚类分析结果与通过传统技术获得的测量结果进行了比较。他们得出了自由水面高度、波浪过顶流量、体积、速度和速度的精确定量估计。本文的目的是进一步研究录像的可能性,重点是分析波浪对墙壁的影响,并检测在影响过程中被困的空气量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
MODELLING WAVE OVERTOPPING AND WAVE IMPACTS BY MEANS OF IMAGE CLUSTERING TECHNIQUES
The experimental modelling of the wave-structure interaction processes is a very complicated issue, due to the highly non-linear turbulent flow conditions, including wave breaking and air entrainment (Stringari et al., 2021). Recently, Formentin et al. (2021) demonstrated that videography can provide a reliable representation of the wave breaking, of the wave overtopping and of the wave impact at walls. They filmed laboratory tests of wave overtopping at smooth dikes with crown walls (Formentin et al., 2018; Palma et al., 2020) with a low-cost full-HD camera and compared the results of the video-cluster analysis applied to its records with the measurements obtained through traditional techniques. They derived accurate quantitative estimations of free-surface elevation, wave overtopping discharge, volumes, velocities and celerities. The aim of this paper is to further investigate the possibilities of the videography by focusing on the analysis of the wave impacts at the walls and on the detection of the amount of air entrapped during the impacts themselves.
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