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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

RE: Download with Tortoise SVN fails

Stijn Bruneel, modified 3 Years ago.

Download with Tortoise SVN fails

Youngling Posts: 2 Join Date: 12/5/16 Recent Posts

I have been trying to download the source code from the trunk using tortoise SVN but I keep getting this error:

Error Connection timed out
68.79 MBytes transferred in 13 minutes and 38 seconds
The operation failed

Many of the required files aren't available. I tried to solve it to increase the time until time out from 60 to 900 with similar result. At a certain moment it just stops transferring.

Has anyone had this same problem and how did you solve it? I also tried to download some of the tags, which didn't work either.

Many thanks in advance,
Dwi Saputri, modified 3 Years ago.

RE: Download with Tortoise SVN fails

Youngling Posts: 9 Join Date: 10/11/16 Recent Posts
Hi Stijn,

When your connection timed out, do you try to download again?
Did the svn pop up you have to clean up?
My internet connection sometimes very poor and need days to download one version.
If the connection timed out, i did clean up in svn with "break lock" checked.
Then update the download again.

I hope this could help.