Boussinesq-type modelling using an unstructured finite element technique

被引：72

作者：

Sorensen, OR ^{[1
]}

Schäffer, HA ^{[1
]}

Sorensen, LS ^{[1
]}

机构：

[1] DHI Water & Environm, DK-2970 Horsholm, Denmark

来源：

COASTAL ENGINEERING | 2004年 / 50卷 / 04期

关键词：

Boussinesq equations; finite element method; unstructured grid; wave breaking; surface roller; run-up;

D O I：

10.1016/j.coastaleng.2003.10.005

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A model for solving the two-dimensional enhanced Boussinesq equations is presented. The model equations are discretised in space using an unstructured finite element technique. The standard Galerkin method with mixed interpolation is applied. The time discretisation is performed using an explicit three-step Taylor-Galerkin method. The model is extended to the surf and swash zone by inclusion of wave breaking and a moving boundary at the shoreline. Breaking is treated by an existing surface roller model, but a new procedure for the detection of the roller thickness is devised. The model is verified using four test cases and the results are compared with experimental data and results from an existing finite difference Boussinesq model. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：181 / 198

页数：18

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[3]

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