Concept
Coastal morphodynamics
Publications associées (47)
Hydro‐morphodynamic evolution in a 90° movable bed discordant confluence with low discharge ratio
Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Sebastián Guillén Ludeña, António Heleno Cardoso
Confluences with low discharge and momentum ratios, where narrow steep tributaries with high sediment load join a wide low-gradient main channel that provides the main discharge, are often observed in high mountain regions such as in the upper- Rhone river ...
Wiley-Blackwell2015Coherent structures in open channel flows with bed load transport over an hydraulically rough bed
Mário Jorge Rodrigues Pereira Da Franca
Excess sediment production in the upper parts of catchments may result in important impacts over morphodynamics of gravel bed-rivers. By changing morphodynamics, sediment overfeeding may induce important changes in the structure of near-bed flow, mainly in ...
CRC Press/Balkema2014Bulk velocity measurements by video analysis of dye tracer in a macro-rough channel
Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Tamara Ghilardi
Steep mountain rivers have hydraulic and morphodynamic characteristics that hinder velocity measurements. The high spatial variability of hydraulic parameters, such as water depth (WD), river width and flow velocity, makes the choice of a representative cr ...
Institute of Physics2014Three-Dimensional Simulation of Lake Ontario North-Shore Hydrodynamics and Contaminant Transport
The hydrodynamics and contaminant transport in the nearshore region of Lake Ontario, from Port Hope to Cobourg, were simulated. The model results were comprehensively validated against observations of water level, temperature, and currents collected during ...
American Society of Civil Engineers2014Morphodynamic differences induced by different confluence angles in widen confluences
Anton Schleiss, Mário Jorge Rodrigues Pereira Da Franca, Sebastián Guillén Ludeña, António Heleno Cardoso
River widening is commonly used as a solution for the rehabilitation of rivers with the main purposes of allowing the river to adjust to its natural dynamics and to improve riparian and instream habitat for flora and fauna, by increasing the heterogeneity ...
CRC Press/Balkema2014Influencing Flow Patterns and Bed Morphology in Open Channels and Rivers by Means of an Air-Bubble Screen
Anton Schleiss, Koen Blanckaert, Violaine Dugué
The ability of a bubble screen to redistribute the flow field and bed morphology in shallow rivers and open channels has been investigated in laboratory experiments. Rising air bubbles generated by a pressurized porous tube situated on the bed induced seco ...
American Society of Civil Engineers2014Two-phase flow modeling of the influence of wave shapes and bed slope on nearshore hydrodynamics
David Andrew Barry, Roham Bakhtyar, Amir Mehdi Razmi
An Eulerian two-phase flow model (air-water) was used to simulate nearshore hydrodynamic processes driven by wave motion. The flow field was computed with the Reynolds-Averaged Navier-Stokes equations in conjunction with the Volume-Of-Fluid method and the ...
Coastal Education and Research Foundation2013A hybrid level set/volume-of-fluid approach for simulation of nearshore hydrodynamics
The main objective of this study was to develop further understanding of surf-swash zone hydrodynamics under a variety of wave forcing conditions. The main tool used was a comprehensive two-phase numerical model – combining two-dimensional wave solver with ...
2013Influence of beach grain size and bed slope on nearshore hydro- and morpho-dynamics
David Andrew Barry, Roham Bakhtyar
Two major parameters that determine the beach type are sediment grain size and beach slope. Intermediate beaches normally have steep slopes and are associated with coarse-grained sands and narrow surf zones, while dissipative beaches generally have mild sl ...
2012Numerical experiments on interactions between wave motion and variable-density coastal aquifers
David Andrew Barry, Alessandro Brovelli, Roham Bakhtyar
A comprehensive two-dimensional (cross-shore) process-based numerical model of nearshore hydrodynamics (based on the Navier-Stokes equations, k-ε turbulence closure and the Volume-Of-Fluid method), beach morphology, and variable-density groundwater flow (S ...
Elsevier2012