An absorbing boundary condition for free surface water waves
Bulent Duz (Maritime Research Institute Netherlands (MARIN), TU Delft - Ship Hydromechanics and Structures)
M.J.A. Borsboom (Deltares)
Arthur E.P. Veldman (Rijksuniversiteit Groningen)
P. R. Wellens (Deltares, TU Delft - Ship Hydromechanics and Structures)
Rene H.M. Huijsmans (TU Delft - Ship Hydromechanics and Structures)
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Abstract
In this paper, the use of an absorbing boundary condition (ABC) is investigated for the numerical simulation of free surface water waves. An enhanced type of an ABC based on the first- and second-order Higdon boundary conditions is presented. The numerical implementation of the ABC using a staggered grid arrangement is explained in detail. Numerical examples are provided to demonstrate the performance of the proposed boundary conditions.
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