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

Threads with tag waq .

Thread Started By Replies Views Last Post  
Parameters not found in inp file and empty *.par file Elfed Jones 0 149
DELWAQ (Sediment Water Interface) Problem Amr Salama 0 380
WARNING: Binary initials file is assumed to have bed substances in mass/gri Leyang Liu 0 861
Spatially Varying Reactions Deon Knights 1 2440
suspended sediment and salinity from FLOW to WAQ? Zhanxian Wang 7 7802
Error message: Improper version of watqual.d3d and proctabl.d3d Michael Ulmgren 4 3969
Passing FLOW output to WAQ for coliform model Moritz Lehmann 2 3474
Compilation Error for the WAQ Module Dirk Smit 0 1390
Coastal model Dissolved Oxygen (DO) boundary & computational issue Danker Kolijn 1 3374
Coupling problems using Z-Layers Manu Hoffmann 21 16863
Delft3D-WAQ. Different dispersion for each cell Alonso Rodríguez Benítez 7 5197
How to get temperature from FLOW in WAQ? Julio Werner Yoshioka Bernardo 2 3521
Reading coupling files Ben Williams 2 3433