Showing papers by "Laurent O. Amoudry published in 2009"
TL;DR: In this paper, a two-dimensional, two-phase model for non-cohesive sediment transport is presented, which solves concentration-weighted averaged equations of motion for both fluid and sediment phases.
40 citations
01 Aug 2009
TL;DR: In this article, a three-dimensional sediment transport model implemented within the Proudman Oceanographic Laboratory Coastal Ocean System (POLCOMS) is presented, where suspended sediment concentration is calculated following advection-diffusion schemes similar to those used for other scalar quantities.
Abstract: We present a three-dimensional sediment transport model implemented within the Proudman Oceanographic Laboratory Coastal Ocean System (POLCOMS). An unlimited number of sediment classes can be transported both as suspended load and bed load. Suspended sediment concentration is calculated following advection-diffusion schemes similar to those used for other scalar quantities. The location of the sediment bed is obtained from near-bed sediment mass conservation and the sediment bed is represented in the model by a layered structure. The ability to reproduce suspended concentration profiles and morphological evolution for a simple case is tested against laboratory experiments of trench migration in a flume
3 citations
01 Jan 2009
TL;DR: In this paper, a three-dimensional baroclinic model is used to solve the incompressible, hydrostatic, Boussinesq shallow water equations of motions.
Abstract: The physical model is based on a three-dimensional baroclinic model and solves the incompressible, hydrostatic, Boussinesq shallow water equations of motions. The governing equations can be expressed and solved both using Cartesian or spherical polar coordinates. The equations are split between depth varying and depth averaged velocities. The vertical gradient of turbulent stresses and fluxes are replaced following the turbulent viscosity and gradient diffusion hypotheses.