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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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Threads with tag delwaq .

Thread Started By Replies Views Last Post  
Error running DELFT3D-WAQ Priscila Vargas 0 89
Model dimensions too large for DELWAQ Stefan Mirbach 3 417
Problems with .tim file - substance discharge FLOW and WAQ José Rafael Cavalcanti 10 3148
ERROR: Binary/unformatted file does not have the correct size Ernesto Molinas 2 954
Error in running delwaq2 Yongbo Zhou 11 4876
Delwaq input file joe rahi 0 769
Agent-based model or Individual-based model in Delft3D Serene Tay 1 607
Z model and D-waq Fernando Barreto 1 2391
delwaq1 error reading block 5 Zhanxian Wang 40 16468
DELWAQ coupled with z-layer Delft3D FLOW model? Zhanxian Wang 7 4776
run DELWAQ on a cluster? Zhanxian Wang 6 3852
Need help for applying D-Water Quality on 0D Fatemeh GholamiMahyari 2 2851
DELWAQ PART - Sand particle tracking John Maskell 0 990
Problem with coupling a ddb file fateme Mahyari 13 6177
[GUI 4.02.03] Issues with PLCT, segment file, DD couple Julio Werner Yoshioka Bernardo 1 1634
point source waq Karoline Wischnewski 1 1334
delwaq1.f: Fortran runtime error on line 548 (examples 06 and 10) Riccardo Navarra 6 4835
Missing delwaq1.exe Yingxuan Chen 1 1315
Coupling D-Flow with Waq Leandro Vaz 0 2596
bloominp.blm growing to 400 GB in Size!!! Daniel Harrison 1 1169