Migration status

  • Home Page: Activity map.

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

Build Error

Shantanu Vidyadhar Bhide, modified 1 Year ago.

Build Error

Youngling Posts: 10 Join Date: 8/31/18 Recent Posts

Dear All,


I am getting errors when I build the solution using MSVS2017 and IFORT18. I am attaching a snapshot of the error messages with this thread. Can someone help me resolve this? I did execute the python file 'prepare_sln.py' to compile the source code. Following that, it displays the message ready to use the 'nefis.sln' file. However, the instructions given in the 'README' file point towards building the solution using 'delft3d_open.sln' and 'dflowfm_open.sln' file. My question is should I build the nefis file initially before moving on towards the two files? 

 Thank You.



Misdacles Smadith, modified 1 Month ago.

RE: Build Error

Youngling Posts: 17 Join Date: 5/13/20 Recent Posts
I was into this issue and tired to   tinker ar https://vidmate.onl/ ound to check if its possible but couldnt get it done. Now that i have seen the way you did it, thanks guys