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intro story DELWAQ


DELWAQ is the engine of the D-Water Quality and D-Ecology programmes of the Delft3D suite. It is based on a rich library from which relevant substances and processes can be selected to quickly put water and sediment quality models together.

The processes library covers many aspects of water quality and ecology, from basic tracers, dissolved oxygen, nutrients, organic matter, inorganic suspended matter, heavy metals, bacteria and organic micro-pollutants, to complex algae and macrophyte dynamics. High performance solvers enable the simulation of long periods, often required to capture the full cycles of the processes being modelled.

The finite volume approach underlying DELWAQ allows it to be coupled to both the structured grid hydrodynamics of the current Delft3D-FLOW engine and the upcoming D-Flow Flexible Mesh engine (1D-2D-3D) of the Delft3D Flexible Mesh Suite (or even other models such as TELEMAC).

'DELWAQ in open source' is our invitation to all leading experts to collaborate in further development and research in the field of water quality, ecology and morphology using Delft3D. Feel free to post your DELWAQ related questions or comments in this dedicated forum space. If you are new to DELWAQ, the tutorial (in the user manual) is a good place to start. A list of DELWAQ related publications is available here.




Sub groups
D-Flow Flexible Mesh

Cohesive sediments & muddy systems


Message Boards

3D Gate Time Series

Christopher Esposito, modified 2 Years ago.

3D Gate Time Series

Padawan Posts: 35 Join Date: 10/16/12 Recent Posts
Hello All,

I am looking for a way to block flow from entering one channel in my model based on a defined operation plan.

The FLOW manual (Version 3.15.34158) says that a 3D gate may be raised and lowered, but while I see documentation on how to define the location and dimension of the gate, I do not see how to define a time series for its operation.

Can anyone provide an example of this functionality that I can adapt?

Also please note that this is a depth averaged model. Is there a way to do this that is simpler than a 3D gate? It doesn't look like weir operation can be defined by timeseries, but there might be another simple option that I am not aware of.