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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

Threads with tag delwaq - water quality .

Thread Started By Replies Views Last Post  
ERROR in GMRES 1 - waq simulations José Rafael Cavalcanti 1 531
"merging com files ..restarted hydrdynamic files...particle tracking" shanas pr 2 1921
Delwaq input file joe rahi 0 695
Oil dispersion DELWAQ Maria Gracioto 2 2941
confusing paragraph on Page 59 of the D-Water Quality User Manual Zhanxian Wang 2 1948
Need help for applying D-Water Quality on 0D Fatemeh GholamiMahyari 2 2709
Aggregating new substances' processes with Delft3D-WAQ Ana Costa 2 2558
I have a problem with temperature modeling in a pond Fatemeh GholamiMahyari 17 3719
I have a problem with temperature modeling in a pond Fatemeh GholamiMahyari 17 3719
Run long-term AD using a repetitive HD pattern Fernando Alvarez 1 1149
Edit algae parameterization in BLOOM Stefan Mirbach 2 1796
D-Flow FM. Temperature output file Leandro Vaz 0 2932
Coupling D-Flow with Waq Leandro Vaz 0 2543
bloominp.blm growing to 400 GB in Size!!! Daniel Harrison 1 1126
Photodegradation element in model Farihah Zakaria 4 2909
Hot Start problem in DELWAQ Yahia Kala 0 1821
Micropollutant modelling Zulhafizal Othman 2 2360
space varying time dependent input data Gisli Steinn Petursson 4 5864
OpenPLCT processes - why are my fluxes depth dependent? David Plew 6 4275
Modelling heat exchange of a stratified lake Marcin Kawka 9 10538