用多层模型分析孤立波的能量学

IF 4.5 2区 工程技术 Q1 ENGINEERING, CIVIL
Hunter Boswell , Frank D. Han , Guirong Yan , Wouter Mostert
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引用次数: 0

摘要

本文研究了垂直拉格朗日多层模型对二维孤立波在破碎过程和破碎后的浅化和破碎过程的数值模拟性能。分析了多层波浪破碎事件的能量耗散,并与前人在相同水深和波浪情况下的直接数值模拟结果进行了比较。它显示了与浅水惯性理论非常相似的数据崩溃。对于破碎后的行为,将孔的特征与破碎孤立波形成的孔的实验研究进行了比较,发现了相似的结果。虽然多层方法不能很好地用于垂直壁面的直接力测量,但由此产生的孔特性行为足以用于对壁面冲击力的理论估计。本研究的这些发现表明,当试图估计垂直海堤上的动态载荷时,垂直拉格朗日多层模型可以很好地解决传播钻孔的问题,只需最小的模型调整。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Energetics analysis of solitary waves using a multi-layer model

Energetics analysis of solitary waves using a multi-layer model
This study investigates the performance of a vertically-Lagrangian multi-layer model on numerically simulating shoaling and breaking two-dimensional solitary waves during both the breaking and post-breaking processes. The energy dissipation of the breaking event for the multi-layer waves is analyzed and compared to prior direct numerical simulation work with the same bathymetric and wave cases. It shows very similar data collapse to shallow-water inertial theory. For post-breaking behavior, bore characteristics are compared to an experimental study of bores formed from breaking solitary waves and similar results are found. While the multi-layer method was not found to behave sufficiently well for direct force measurement at a vertical wall, the resulting bore characteristic behavior is found to be sufficient for use in theoretical estimations of the impact force on the wall. These findings in this study suggest that vertically-Lagrangian multilayer models resolve propagating bores sufficiently well when trying to estimate dynamic loads on vertical seawalls with minimal model tuning.
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来源期刊
Coastal Engineering
Coastal Engineering 工程技术-工程:大洋
CiteScore
9.20
自引率
13.60%
发文量
0
审稿时长
3.5 months
期刊介绍: Coastal Engineering is an international medium for coastal engineers and scientists. Combining practical applications with modern technological and scientific approaches, such as mathematical and numerical modelling, laboratory and field observations and experiments, it publishes fundamental studies as well as case studies on the following aspects of coastal, harbour and offshore engineering: waves, currents and sediment transport; coastal, estuarine and offshore morphology; technical and functional design of coastal and harbour structures; morphological and environmental impact of coastal, harbour and offshore structures.
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