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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.

** PLEASE TAG YOUR POST! **

 

 

Sub groups
D-Flow Flexible Mesh
DELWAQ

Cohesive sediments & muddy systems

 


Breadcrumbs

Threads
  • Maria Gracioto replied 18 Days ago.

    Error not finding delpar.exe - D-PART

    7 Posts 336 Views 0 Answers
  • 22
    21712235 21712235 21712235 replied 2 Months ago.

    Interaction D-Waq and D-Part

    3 Posts 1387 Views 0 Answers
  • ZW
    Zhanxian Wang replied 11 Months ago.

    suspended sediment and salinity from FLOW to WAQ?

    4 Posts 2068 Views 1 Answer
  • ST
    Serene Tay, modified 1 Year ago.

    Spatial wind input in d-particle track

    1 Post 1195 Views 0 Answers
  • xia wei replied 10 Months ago.

    Vegetation Decomposition Parameters

    4 Posts 3513 Views 1 Answer
  • VY
    veli yumruktepe replied 4 Years ago.

    Substance files

    15 Posts 15773 Views
  • Amaal Osama Fathy, modified 11 Hours ago.

    Increase WAQ simulation period than Flow?

    1 Post 7 Views
  • RK
    Ravi Kumar replied 12 Days ago.

    How to incorporate a new processes into the library?

    31 Posts 2615 Views
  • AM
    Arjen Markus replied 16 Days ago.

    Delwaq-Scale factor and units in Delwaq

    2 Posts 109 Views
  • AM
    Arjen Markus replied 18 Days ago.

    Modelling the oxygen production with photosynthesis

    2 Posts 313 Views
  • AM
    Arjen Markus replied 25 Days ago.

    Delwaq: ambient shear stress?

    4 Posts 237 Views
  • FP
    Francesco P, modified 25 Days ago.

    BLOOM: conversion fractions in mineralization process

    1 Post 135 Views 0 Answers
  • AM
    Arjen Markus replied 1 Month ago.

    Delwaq-Define input-Discharges

    4 Posts 198 Views
  • AM
    Arjen Markus replied 1 Month ago.

    incoming flow : zero concentration gradient of incoming flow.

    2 Posts 173 Views
  • AM
    Arjen Markus replied 1 Month ago.

    Cannot add or delete a new open boundary

    3 Posts 361 Views
  • AM
    Arjen Markus replied 1 Month ago.

    GMRES Error

    9 Posts 4981 Views 1 Answer
  • AM
    Arjen Markus replied 1 Month ago.

    Delwaq2: Scientific reference about numerical methods in Delwaq

    4 Posts 643 Views
  • GS
    Gholamreza Shiravani replied 1 Month ago.

    Delwaq2 NaN value for continuity-check

    3 Posts 559 Views
  • AM
    Arjen Markus replied 1 Month ago.

    Dwaq error

    2 Posts 342 Views
  • SR
    Shivanesh Rao replied 2 Months ago.

    delwaq time-step relative to telemac timestep

    5 Posts 502 Views
  • YX
    yu jia xin, modified 2 Months ago.

    waq

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

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

    3 Posts 591 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 366 Views 0 Answers
  • 22
    21712235 21712235 21712235, modified 2 Months ago.

    waq

    1 Post 360 Views
  • Michelle Jeuken replied 3 Months ago.

    Temperature in HD and WQ

    6 Posts 792 Views
  • Rudy Schueder replied 3 Years ago.

    Erroneous spikes in BLOOM-related parameters in morning and evening

    5 Posts 3713 Views 1 Answer
  • AM
    Arjen Markus replied 4 Months ago.

    Particle Tracking

    4 Posts 571 Views 0 Answers
  • GS
    Gholamreza Shiravani replied 4 Months ago.

    Error Delwaq2 by increasing the number of Processors

    3 Posts 394 Views
  • GS
    Gholamreza Shiravani replied 4 Months ago.

    Error delwaq1 in BLOCK-7

    8 Posts 868 Views
  • Michelle Jeuken replied 4 Months ago.

    Source code for ddcouple

    4 Posts 639 Views
  • GS
    Gholamreza Shiravani replied 4 Months ago.

    Using ddcouple

    3 Posts 3468 Views 0 Answers
  • AM
    Arjen Markus replied 5 Months ago.

    child killed: unknown signal

    2 Posts 348 Views
  • SX
    ShengZhuo Xu, modified 6 Months ago.

    Questions about ERROR NEFIS message 8016

    1 Post 364 Views 0 Answers
  • MD
    meddy danial replied 6 Months ago.

    Boundary conditions

    5 Posts 3873 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 2690 Views 0 Answers
  • AA
    Amelia Araujo, modified 8 Months ago.

    RadSurf file in BLOOM

    1 Post 1242 Views
  • AA
    Amelia Araujo replied 8 Months ago.

    DELWAQ Conversion NEFIS to NetCDF

    15 Posts 7929 Views 1 Answer
  • AA
    Amelia Araujo replied 8 Months ago.

    delwaq1 error reading block 5

    41 Posts 9527 Views 1 Answer Locked
  • AM
    Arjen Markus replied 11 Months ago.

    Spatially Varying Reactions

    2 Posts 1169 Views 1 Answer
  • AM
    Arjen Markus replied 11 Months ago.

    DELWAQ coupled with z-layer Delft3D FLOW model?

    8 Posts 2402 Views 1 Answer
  • AM
    Arjen Markus replied 11 Months ago.

    confusing paragraph on Page 59 of the D-Water Quality User Manual

    3 Posts 1144 Views
  • Michelle Jeuken replied 11 Months ago.

    How to do water balance check and how to calculate thermal water fraction

    10 Posts 3020 Views 2 Answers
  • Michelle Jeuken replied 11 Months ago.

    run DELWAQ on a cluster?

    7 Posts 2227 Views 1 Answer
  • Fatemeh GholamiMahyari replied 1 Year ago.

    Need help for applying D-Water Quality on 0D

    3 Posts 1662 Views 0 Answers
  • Santiago Montes replied 1 Year ago.

    Error with statistical output function STAPRC

    3 Posts 1508 Views
  • Michelle Jeuken replied 1 Year ago.

    Error message: Improper version of watqual.d3d and proctabl.d3d

    5 Posts 1963 Views 1 Answer
  • AM
    Arjen Markus replied 1 Year ago.

    Illegal option for reaeration formula

    5 Posts 1924 Views
  • Michelle Jeuken replied 1 Year ago.

    Trouble in modeling NO3 in a wastewater pond

    7 Posts 2288 Views
  • Amr Salama replied 1 Year ago.

    Sediment Water Interaction

    5 Posts 2330 Views 1 Answer
  • Michelle Jeuken replied 1 Year ago.

    about waq (1) execution error...

    3 Posts 1817 Views 0 Answers
  • Ana Costa replied 1 Year ago.

    Aggregating new substances' processes with Delft3D-WAQ

    3 Posts 1756 Views 0 Answers
  • Fatemeh GholamiMahyari replied 1 Year ago.

    RE: I need help in making dll file

    4 Posts 1695 Views
  • AM
    Arjen Markus replied 1 Year ago.

    Passing FLOW output to WAQ for coliform model

    3 Posts 1747 Views 0 Answers
  • AM
    Arjen Markus replied 1 Year ago.

    I have a problem with temperature modeling in a pond

    18 Posts 2223 Views
  • MK
    mohit khunt replied 1 Year ago.

    d_hydro.exe not found

    9 Posts 1970 Views 1 Answer
  • Michelle Jeuken replied 1 Year ago.

    problem in Part when simulating oil spill

    8 Posts 1566 Views 2 Answers
  • PQ
    PEIZHI QIN replied 1 Year ago.

    RE: something wrong when I import the discharge date in the WAQ

    4 Posts 1158 Views
  • Michelle Jeuken replied 1 Year ago.

    uniform waste load at bank

    2 Posts 1107 Views 0 Answers
  • Michelle Jeuken replied 1 Year ago.

    [GUI 4.02.03] Issues with PLCT, segment file, DD couple

    2 Posts 1128 Views
  • Michelle Jeuken replied 1 Year ago.

    3D z-model: Different free surfaces in FLOW and DELWAQ

    3 Posts 1768 Views 2 Answers
  • Michelle Jeuken replied 1 Year ago.

    read and write *.flo file for PART

    6 Posts 1790 Views 1 Answer
  • Michelle Jeuken replied 1 Year ago.

    simulate the growth process of vegetation

    2 Posts 1093 Views 1 Answer
  • Michelle Jeuken replied 1 Year ago.

    Problems in coupling Flow/Wave with Delwaq

    3 Posts 1209 Views 1 Answer
  • AM
    Arjen Markus replied 1 Year ago.

    Problem with coupling a ddb file

    14 Posts 3425 Views
  • Michelle Jeuken replied 1 Year ago.

    Edit algae parameterization in BLOOM

    3 Posts 1346 Views 1 Answer
  • Michelle Jeuken replied 1 Year ago.

    Possible bug with PCLT

    2 Posts 1154 Views 1 Answer
  • Michelle Jeuken replied 1 Year ago.

    delft-waq coupling error 6005

    6 Posts 2272 Views 4 Answers
  • Michelle Jeuken replied 1 Year ago.

    point source waq

    2 Posts 1018 Views 1 Answer
  • AM
    Arjen Markus replied 2 Years ago.

    Crushing Delft3d-WAQ when entering data

    2 Posts 1649 Views
  • Michelle Jeuken replied 1 Year ago.

    Defining initial conditions in WAQ

    2 Posts 2036 Views 1 Answer
  • SL
    S L, modified 2 Years ago.

    modelling nutrient

    1 Post 1699 Views
  • FP
    Francesco Paladini, modified 2 Years ago.

    process coefficient in the WAQ model

    1 Post 1462 Views
  • ZW
    Zhanxian Wang replied 1 Year ago.

    using hydrodynamic output from parallel computing for WAQ/PART module

    14 Posts 3911 Views 2 Answers
  • Michelle Jeuken replied 1 Year ago.

    Delft3D-PART stormwater outlet in a lake

    3 Posts 2356 Views 1 Answer
Showing 1 to 75 of 201 entries.