Environmental modelling is based on the transport of substances in surface and ground water using the so-called advection-diffusion equation. The water quality module Delft3D-WAQ of the Delft3D 4 Suite is based on this equation and it offers different computational methods to solve it numerically on an arbitrary irregular shaped grid, on a grid of rectangles, triangles or curvilinear computational elements. The sediment transport module Delft3D-SED can be applied to model the transport of cohesive and non-cohesive sediments, i.e. to study the spreading of dredged materials, to study sedimentation/erosion patterns and to carry out water quality and ecology studies where sediment is the dominant factor. It is in fact a sub-module of the water quality module. The ecology transport module Delft3D-ECO distributes the available resources (nutrients and light) in an optimal way among the different types of algae. It is in fact a sub-module of the water quality module. The particle tracking module Delft3D-PART is a three-dimensional mid-field water quality model. It estimates a dynamic concentration distribution by following the tracks of thousands of particles in time. Water quality processes are described by linear or non-linear functions of selected state variables and model parameters. Many process formulations are available in the form of a library, which smoothly interfaces with the water quality module. The library contains over 50 water quality process routines covering 140 standard substances.
Some areas of applications
- Environmental Impact Assessment (EIA), objective evaluation of alternatives;
- Sewage and/or storm water outfall studies;
- Bio-availability of heavy metals (and organic micropollutants);
- Recirculation of cooling water from power and desalination plants including the release of bio-fouling chemicals such as chlorine;
- Effects of dredging on the environment;
- Simulation of oil spills with floating and dispersed oil fractions.
Objective of the course
Setting up and running a water quality, an ecological, particle tracking as well as an oil disposal simulation.
- Some basic theoretical concepts of environmental modelling;
- Some numerical aspect to transport modelling;
- Coupling hydrodynamic output to the environmental model input;
- Selecting substances and processes with the Processes Library Configuration Tool;
- Setting up and running a sediment, oxygen, nutrients and algae simulation;
- Setting up and running a tracer simulation;
- Setting up and running an oil disposal simulation.
This course is aimed at
- Knowledge how to model the hydrodynamics;
- Project engineers, project leaders and researchers.