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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


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Question For Delft3D-Flow

WONHYUN LEE, modified 2 Years ago.

Question For Delft3D-Flow

Youngling Posts: 2 Join Date: 1/7/15 Recent Posts
Hello, Guys~

My name is Wonhyun Lee, now I am interested in Cyclone model, but I have a big question for that.

In particular, for the evaporation and precipitation rate.

well, normally, Delft3D-Flow provides the XXX.eva (additional parameter : Fileva ;#XXX.eva#) files to apply it.


I would like to apply the spatial-temporal varying evaporation and precipitation rates into the model.
For example, if the cyclone is moving and landfalling to some area,
normally lots of rainfalls is accompanied with a hurricane.

So, could you please let me know, 'spatial-temporal varying evaporation & precipitation rates are available for Flow model?
any tips for input files (evaporation and precipitation rates)
or is there any option that evaporation & precipitation rates are included with a hurricane?

Have a great day.