Open AccessA convection‐diffusion model for suspended sediment in the surf zone
Author(s) -
Duy Nguyen The,
Shibayama Tomoya
Publication year - 1997
Publication title -
journal of geophysical research: oceans
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/97jc00790
Subject(s) - surf zone , geology , mechanics , sediment , convection , diffusion , sediment transport , field (mathematics) , geomorphology , physics , thermodynamics , mathematics , pure mathematics
A model is developed to simulate the temporal and spatial distributions of suspended sediment in the surf zone. The model is solved numerically in a time domain and in a two‐dimensional vertical plane. At each time step of computation, the upper moving boundary (water surface) and the velocity field are determined through the solution of a hydrodynamic model which is based on the Reynolds equations of motion. The sediment concentration field is then determined by solving the convection‐diffusion equation of the sediment mass. The comparisons with laboratory data of various experimental conditions show reasonable agreements for the simulated wave field and the concentration field in the surf zone.