A novel two-way method for dynamically coupling a hydrodynamic model with a discrete element model(DEM)

被引：0

作者：

熊焱 ^{[1
]}

Qiuhua Liang ^{[1
,2
]}

Samantha Mahaffey ^{[3
]}

Mohamed Rouainia ^{[3
]}

王岗 ^{[1
]}

机构：

[1] State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Hohai University

[2] School of Architecture, Building and Civil Engineering, Loughborough University

[3] School of Engineering, Newcastle University

来源：

Journal of Hydrodynamics | 2018年 / 30卷 / 05期

关键词：

Coupled model; discrete element model(DEM); extreme hydraulic conditions; floating debris; shallow water equations; Godunov-type finite volume method;

D O I：

暂无

中图分类号：

O352 [];

学科分类号：

080103 ; 080704 ;

摘要：

The effect of floating objects has so far been little considered for hazard risk assessment and structure design, despite being an important factor causing structural damage in flood-prone and coastal areas. In this work, a novel two-way method is proposed to fully couple a shock-capturing hydrodynamic model with a discrete element model(DEM) for simulation of complex debris-enriched flow hydrodynamics. After being validated against an idealized analytical test, the new coupled model is used to reproduce flume experiments of floating debris driven by dam-break waves. The numerical results agree satisfactorily with the experimental measurements, demonstrating the model's capability and efficiency in simulating complex fluid-debris interactions induced by violent shallow flows.

引用

页码：966 / 969

页数：4

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