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

rgfgrid source code

Ali Ghasemi, modified 3 Months ago.

rgfgrid source code

Youngling Posts: 1 Join Date: 1/9/20 Recent Posts
I need rgfgrid source code, would you please give me suggestion to find this.  
Henry Henry, modified 3 Months ago.

RE: rgfgrid source code

Youngling Posts: 1 Join Date: 12/21/20 Recent Posts
At this page you can post questions or start discussions on general topics related to Delft3D: Obtaining and compiling the source code.You can get RGFGRID for free of charge until Deltares releases its source code (not sure when). You can request the tool from the following site Open Source Pre- and Postprocessing • RGFGRID • curvi-linear and flexible mesh grid generator  
iMessage for PC
Plato Velazquez, modified 3 Months ago.

RE: rgfgrid source code

Youngling Posts: 1 Join Date: 12/19/20 Recent Posts
I have planed a trip to visit and see the coastal system. I had booked my trip to https://writingpro.org/ because of their low prices. Now when I will see it I will be amazed and think of how complex it is actually.