alexa Modeling Interactions and Shoaling of Solitary Waves Using a Hybrid Finite Volume and Finite Difference Solver
ISSN: 2168-9679

Journal of Applied & Computational Mathematics
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Research Article

Modeling Interactions and Shoaling of Solitary Waves Using a Hybrid Finite Volume and Finite Difference Solver

Keh-Han Wang1* and Burak Turan2

1Department of Civil and Environmental Engineering, University of Houston, Houston, TX, 77204-4003, USA

2Emek 4, Cad No: 158/4, Cankaya, Ankara, Turkey

*Corresponding Author:
Keh-Han Wang
Deptartment of Civil and Environmental Engineering
University of Houston, Houston, TX 77204-4003, USA
Tel: 1-713-743-4277
Fax: 1-713-743-4260
E-mail: [email protected]

Received May 24, 2014; Accepted July 09, 2014; Published July 14, 2014

Citation: Wang KH, Turan B (2014) Modeling Interactions and Shoaling of Solitary Waves Using a Hybrid Finite Volume and Finite Difference Solver. J Appl Computat Math 3: 173. doi: 10.4172/2168-9679.1000173

Copyright: © 2014 Wang KH, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

This paper presents a mixed finite volume and finite difference solver with results showing the solitary wave interactions and shoaling process by solving a set of conservative forms of Boussinesq equations. A second order accurate finite volume scheme is applied to the conservative terms of the governing equations while up to the second order finite difference formulations are used to discretize the dispersive source terms with higher order derivatives. The limiters and surface gradient method are implemented in the model to remove the unwanted spurious oscillations and preserve the still water condition without introducing errors at the interfaces. The performance of the present numerical solver is tested with results of head on collisions and shoaling of solitary waves compared against those from finite element models that were developed based on fully nonlinear weakly dispersive and weakly nonlinear weakly dispersive forms of the Boussinesq equations as well as analytical solutions and experimental observations.

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