A two-dimensional non-hydrostatic numerical model for dispersive waves generated by submerged landslides

IF 4.2 2区环境科学与生态学 Q1 WATER RESOURCES

Advances in Water Resources Pub Date : 2025-09-02 DOI:10.1016/j.advwatres.2025.105100

Dede Tarwidi , Sri Redjeki Pudjaprasetya , Didit Adytia

引用次数: 0

Abstract

In this paper, a one-layer non-hydrostatic (NH-1L) model for simulating the generation of surface waves caused by the three-dimensional submerged landslide is developed. The non-hydrostatic model considered here is a depth-integrated version of the three-dimensional continuity and Euler equations, whereas time-varying bathymetry is accommodated in the kinematic equation along the bottom topography. The numerical scheme NH-1L is implemented on a two-dimensional staggered grid and is shown to have weakly dispersive properties. The validation of numerical results with analytical solutions and experimental data shows a satisfactory agreement. Moreover, the NH-1L model is investigated to predict wave run-up in confined bays. Considering its computational efficiency, the proposed NH-1L model provides a viable alternative for simulating wave generation, propagation, and run-up, particularly in cases with weak dispersion effects.

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淹没滑坡色散波的二维非静力数值模型

本文建立了一种用于模拟三维淹没滑坡表面波产生的单层非水静力（NH-1L）模型。这里考虑的非流体静力模型是三维连续性和欧拉方程的深度积分版本，而时变测深则包含在沿着底部地形的运动学方程中。数值格式NH-1L是在二维交错网格上实现的，具有弱色散特性。数值计算结果与解析解和实验数据的验证结果吻合较好。此外，还研究了NH-1L模型对密闭海湾中波浪上升的预测效果。考虑到其计算效率，所提出的NH-1L模型提供了一种可行的替代方案来模拟波的产生、传播和上升，特别是在弱色散效应的情况下。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Water Resources 环境科学-水资源

CiteScore

9.40

自引率

6.40%

发文量

171

审稿时长

36 days

期刊介绍： Advances in Water Resources provides a forum for the presentation of fundamental scientific advances in the understanding of water resources systems. The scope of Advances in Water Resources includes any combination of theoretical, computational, and experimental approaches used to advance fundamental understanding of surface or subsurface water resources systems or the interaction of these systems with the atmosphere, geosphere, biosphere, and human societies. Manuscripts involving case studies that do not attempt to reach broader conclusions, research on engineering design, applied hydraulics, or water quality and treatment, as well as applications of existing knowledge that do not advance fundamental understanding of hydrological processes, are not appropriate for Advances in Water Resources. Examples of appropriate topical areas that will be considered include the following: • Surface and subsurface hydrology • Hydrometeorology • Environmental fluid dynamics • Ecohydrology and ecohydrodynamics • Multiphase transport phenomena in porous media • Fluid flow and species transport and reaction processes