A comparison of two different types of shoreline boundary conditions

被引：23

作者：

Brocchini, M

Svendsen, IA

Prasad, RS

Bellotti, G

机构：

[1] Univ Genoa, DIAm, I-16145 Genoa, Italy

[2] Univ Delaware, CACR, Newark, DE 19716 USA

[3] Univ Roma Tre, DSIC, I-00146 Rome, Italy

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2002年 / 191卷 / 39-40期

关键词：

nonlinear shallow water equations; moving shoreline; moving grid; Riemann solver;

D O I：

10.1016/S0045-7825(02)00392-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two different types of shoreline boundary conditions which can be used in either wave-resolving or wave-averaging models of waves and currents propagation in the nearshore are compared here. The two techniques are essentially different: in the first case the velocity of the shoreline is obtained by the momentum equation and the shoreline position is tracked by changing the grid position, while in the other case the velocity of the shoreline is obtained by a modified Riemann solver and the shoreline is defined as an interface between dry and wet fixed grid points. A number of test cases are described to compare the performance of the two techniques. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：4475 / 4496

页数：22

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