A width-averaged hydrodynamic model of two-layer tidal circulation

Estuaries support a unique hydrodynamic system due to the fresh water flowing into a salt water sea. This leads to stratification which can significantly alter internal tidal dynamics in the estuary. A model has been developed by Winant (2010) to describe the water motions of a two-layer system in tidal basin. The aim of this thesis is provide...

Idealised tidal dynamics in an estuary with a horizontally movable time dependent barrier: A contribution to one of the possible solutions of the sludge problem in the Eems estuary

In this thesis the hydrodynamic behaviour of an idealised relatively short tidal estuary is studied using a cross-sectionally averaged model, i.e. a one dimensional model. The geometry of the estuary is simplified and only the hydrodynamic processes are considered. This model is used to gain insight in the behaviour of currents and water levels...

Solar Radiation in Large-Eddy Simulations Coupled to a General Circulation Model

The present study aims to assess and advance the prediction skill of solar radiation in high resolution weather forecasts by large-eddy simulations (LES). The GPU-Resident Atmospheric Simulation Platform (GRASP) was used to simulate the atmosphere around the Cabauw experimental site for atmospheric research (CESAR) in the Netherlands. Large...

A study on the environmental state of the Caribbean Sea in relation to the rapid intensification of tropical cyclone Matthew

Tropical cyclones have the ability to very quickly increase in strength. This process is called rapid intensification and as a result, tropical cyclones can transform into hurricanes. Rapid intensification is related to the availability of heat and the amount of negative feedback of the ocean on the tropical cyclone. Negative feedback results in...

Towards improving the land-surface-atmosphere coupling in the Dutch Atmospheric Large-Eddy Simulation model (DALES)

This report proposes improvements of the land surface model (LSM) used in the turbulence-resolving Dutch Atmospheric Large-Eddy Simulation model (DALES). Important changes include the infiltration of precipitation, the parametrization of the soil hydraulic functions and the formulation of the soil water extraction by vegetation roots. The...

Simulation of the effect of atmospheric stratification on the power production of a wind farm

The wind energy industry is growing more than ever before and wind energy as a renewable energy source has shown quite a potential over the years. Unfortunately, the power yield of a wind farm can fluctuate largely over time, which originates from fluctuating wind speed magnitudes. Convection of air, turbulence, humidity and radiation of heat are...