Open AccessNUMERICAL MODELING OF WAVE DEFORMATION WITH A CURRENT
Author(s) -
Susumu Ohnaka,
Akira Watanabe,
Mashiko Isobe
Publication year - 1988
Publication title -
proceedings of conference on coastal engineering/proceedings of ... conference on coastal engineering
Language(s) - English
Resource type - Journals
eISSN - 2156-1028
pISSN - 0589-087X
DOI - 10.9753/icce.v21.27
Subject(s) - current (fluid) , computation , diffraction , refraction , reflection (computer programming) , boundary value problem , field (mathematics) , numerical analysis , breaking wave , plane wave , computer simulation , boundary (topology) , mechanics , physics , wave propagation , mathematical analysis , optics , computer science , mathematics , algorithm , pure mathematics , thermodynamics , programming language
A numerical computation method for a wave field coexisting with a current is presented to study wave-current interaction on a slowly varying bottom topography. Derivation is given for a new set of time-dependent mildslope equations extended to a wave and current coexisting field, which can deal with wave deformation due to combined refraction, diffraction, reflection and breaking as well as to wave-current interaction. Discussion is made on the numerical computation schemes, boundary conditions and breaking conditions. Some examples of the numerical computations are shown for wave and current coexisting fields.