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Accession Number ADA578430
Title Modeling Combined Diffraction-Refraction in a Coastal Spectral Wave Model.
Publication Date Jun 2012
Media Count 9p
Personal Author L. Lin Z. Demirbilek
Abstract This paper describes the derivation and implementation of combined wave diffraction-refraction in a spectral directional wave model for coastal applications. The wave refraction is included in the total derivative of wave- action while diffraction is formulated as wave energy diffusion in the wave- action balance equation. The combined diffraction-refraction model equation conserves the total wave-action under no net energy gain or loss. The numerical solution scheme for the model equation is simple and computation is stable. The method is demonstrated in a two-dimensional (2D) steady-state spectral model for a long wedge, an idealized shoal and a coastal harbor physical model.
Keywords Coastal regions
Idealized elliptic shoals
Infinite wedges
Numerical methods and procedures
Water waves

Source Agency Non Paid ADAS
NTIS Subject Category 48G - Hydrology & Limnology
72B - Algebra, Analysis, Geometry, & Mathematical Logic
46C - Optics & Lasers
Corporate Author Army Engineer Waterways Experiment Station, Vicksburg, MS. Engineer Research and Development Center.
Document Type Technical report
Title Note Conference paper.
NTIS Issue Number 1321
Contract Number N/A

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