A Method to Treat Incident Wave Condition in Shallow Water Equationby Toshio Kodama, Sato Kogyo Co, Japan,
Mutsuto Kawahara, Sato Kogyo Co, Japan,
Abstract: A method to consider open boundary condition of the shallow water equation to analyze water surface wave and tide is employed in the finite element anaysis. This can be done by considering the nonreflective virtual boundary condition on the incident boundary. Consequently, it is shown that incident wave conditions without spurious reflection waves can be imposed on the open boundary. The applicability of this method is confirmed through several numerical computations.
Subject Headings: Surface waves | Water waves | Finite element method | Shallow water | Wave equations | Boundary element method | Boundary conditions
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