Journal
COASTAL ENGINEERING
Volume 56, Issue 5-6, Pages 609-620Publisher
ELSEVIER
DOI: 10.1016/j.coastaleng.2009.01.001
Keywords
Boussinesq equations; Hybrid scheme; Finite volume; Finite difference
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In this paper, a hybrid scheme based on a set of 2DH extended Boussinesq equations for slowly varying bathymetries is introduced. The numerical code combines the finite volume technique, applied to solve the advective part of the equations, with the finite difference method, used to discretize dispersive and source terms. Time integration is performed using the fourth-order Adams-Bashforth-Moulton preclictor-corrector method; the Riemann problem is solved employing an approximate HLL solver, a fourth-order MUSCL-TVD technique is applied. Five test cases, for non-breaking and breaking waves, are reproduced to verify the model comparing its results to laboratory data or analytical solutions. (C) 2009 Elsevier B.V. All rights reserved.
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