Migration status

  • Home Page: Activity map.


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



  • YX
    yu jia xin, modified 2 Months ago.


    1 Post 378 Views
  • YX
    yu jia xin replied 2 Months ago.

    "merging com files ..restarted hydrdynamic files...particle tracking"

    3 Posts 594 Views 0 Answers
  • 22
    21712235 21712235 21712235, modified 2 Months ago.

    Hello, everyone, after using parallel computing flow module, I chose to cal

    1 Post 368 Views 0 Answers
  • 22
    21712235 21712235 21712235, modified 2 Months ago.


    1 Post 363 Views
  • Michelle Jeuken replied 3 Months ago.

    Temperature in HD and WQ

    6 Posts 794 Views
  • Rudy Schueder replied 3 Years ago.

    Erroneous spikes in BLOOM-related parameters in morning and evening

    5 Posts 3715 Views 1 Answer
  • AM
    Arjen Markus replied 4 Months ago.

    Particle Tracking

    4 Posts 575 Views 0 Answers
  • GS
    Gholamreza Shiravani replied 4 Months ago.

    Error Delwaq2 by increasing the number of Processors

    3 Posts 398 Views
  • GS
    Gholamreza Shiravani replied 4 Months ago.

    Error delwaq1 in BLOCK-7

    8 Posts 870 Views
  • Michelle Jeuken replied 4 Months ago.

    Source code for ddcouple

    4 Posts 641 Views
  • GS
    Gholamreza Shiravani replied 4 Months ago.

    Using ddcouple

    3 Posts 3473 Views 0 Answers
  • AM
    Arjen Markus replied 5 Months ago.

    child killed: unknown signal

    2 Posts 349 Views
  • SX
    ShengZhuo Xu, modified 6 Months ago.

    Questions about ERROR NEFIS message 8016

    1 Post 366 Views 0 Answers
  • MD
    meddy danial replied 6 Months ago.

    Boundary conditions

    5 Posts 3875 Views
  • AM
    Arjen Markus replied 6 Months ago.

    Is still Delwaq for one node or already developed for cluster using MPI?

    2 Posts 383 Views
  • Michelle Jeuken replied 7 Months ago.

    Delft Flow-WAQ coupling error

    4 Posts 2693 Views 0 Answers
  • AA
    Amelia Araujo, modified 8 Months ago.

    RadSurf file in BLOOM

    1 Post 1246 Views
  • AA
    Amelia Araujo replied 8 Months ago.

    DELWAQ Conversion NEFIS to NetCDF

    15 Posts 7934 Views 1 Answer
  • AA
    Amelia Araujo replied 8 Months ago.

    delwaq1 error reading block 5

    41 Posts 9534 Views 1 Answer Locked
  • AM
    Arjen Markus replied 11 Months ago.

    Spatially Varying Reactions

    2 Posts 1170 Views 1 Answer
Showing 21 to 40 of 201 entries.