Abstract
We present the Galerkin boundary element method (BEM) for the numerical simulation of free-surface water waves in a model basin. In this work, as a first step we consider the linearized model of this time-dependent three-dimensional problem. After time discretization by an explicit Runge-Kutta scheme, the problem to be solved at each time step corresponds to the evaluation of a Dirichlet-to-Neumann map on the free surface of the domain. We use the Galerkin BEM for the approximate evaluation of the Dirichlet-to-Neumann map. To solve the resulting large, dense linear system, we use a data-sparse matrix approximation method based on hierarchical matrix representations. The proposed algorithm is quasi-optimal. Finally, some numerical results are given.
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Hofreither, C., Langer, U., Tomar, S. (2010). Boundary Element Simulation of Linear Water Waves in a Model Basin. In: Lirkov, I., Margenov, S., Waśniewski, J. (eds) Large-Scale Scientific Computing. LSSC 2009. Lecture Notes in Computer Science, vol 5910. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-12535-5_14
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DOI: https://doi.org/10.1007/978-3-642-12535-5_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-12534-8
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