Numerical morphological modeling of braided rivers, using a physics-based approach, is increasingly used as a technique to explore controls on river pattern and, from an applied perspective, to simulate the impact of channel modifications. This paper assesses a depth-averaged nonuniform sediment model (Delft3D) to predict the morphodynamics of a 2.5 km long reach of the braided Rees River, New ...

The coupled Delft3D-object model has been developed to predict the mobility and burial of objects on sandy seafloors. Delft3D is used seabed environmental factors such as currents, waves (peak wave period, significant height, direction), water level, sediment transport, change, which are taken forcing term object consisting three components: (a) physical parameters diameter, length, mass, rolli...

Estuarine systems currently face increasing pressure due to population growth, rapid economic development, and the effect of climate change, which threatens deterioration their water quality. This study uses an open-source model high transferability (Delft3D), investigate physics quality dynamics, spatial variability, interrelation two estuarine Portuguese west coast: Mondego Estuary Óbidos Lag...

The hydrodynamics in Lake Naivasha, a shallow endorheic lake, are simulated using the Delft3D Flow Module to investigate the major driving forces of hydrodynamics in the lake. The results showed wind as the major forcing. The shallow zones of the lake showed currents movement in the same direction as the wind while the deep zones showed currents movements against the wind direction. These findi...

In this paper, a shallow-water flow solver is presented, based on the finite-volume method on unstructured grids The method is suitable for flows that occur in rivers, channels, sewer systems (1D), shallow seas, rivers, overland flow (2D), and estuaries, lakes and shelf breaks (3D). We present an outline of the numerical approach and show three 2D test cases and an application of tidal propagat...

The prediction of pollutant concentrations in the coastal waters is essential for water quality control. The description of physical processes and their implementation in computer models shows that there is neither a “complete model” including all important spatial and temporal scales of the dominant processes nor a standard procedure for the coupling of models. This is explained by deficiencie...

Kaanapali beach is a well-defined littoral cell of carbonate sand extending 2 km south from Black Rock (a basalt headland) to Hanakao’o Point. The beach experiences dynamic seasonal shoreline change forced by longshore transport from two dominant swell regimes. In summer, south swells (Hs = 1-2 m Tp = 14-25 s) drive sand to the north, while in winter, north swells (Hs = 5-8 m Tp = 14-20 s) driv...