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intro story DELWAQ

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.

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Sub groups
D-Flow Flexible Mesh
DELWAQ

Cohesive sediments & muddy systems

 


Message Boards

WAQ: Coupling with FLOW in LINUX

JL
João Lencart e Silva, modified 7 Years ago.

WAQ: Coupling with FLOW in LINUX

Padawan Posts: 70 Join Date: 3/30/11 Recent Posts
Hi All,

I can't locate any example/manual note where the coupling procedure (on or offline) with FLOW is explained.
Can you give me a hand here?

Best,

João.
CT
Christophe Thiange, modified 7 Years ago.

RE: WAQ: Coupling with FLOW in LINUX

Jedi Knight Posts: 125 Join Date: 11/15/12 Recent Posts
Hi João,

The tutorial (section 7.1) in the D-Water Quality user manual gives an example of the coupling procedure.
You might find the input file description usefull as well, section 4 covers hydrodynamic data.

If you want to have FLOW creating D-Water Quality input directly, go to section B.18 in the FLOW manual. For the classic off-line coupling just make sure your FLOW runs output com-files: section 5.15 in the FLOW manual.

Good luck!
Christophe
JL
João Lencart e Silva, modified 7 Years ago.

RE: WAQ: Coupling with FLOW in LINUX

Padawan Posts: 70 Join Date: 3/30/11 Recent Posts
Hi Christophe,

Thanks for the suggestion and the updated manual, I had a really old version of that.
I probably didn't phrase the question right. I know how to make a hyd file and run the offline coupling from the GUI.

My question is how to run it from the the command line in LINUX. The examples only cover calling the delwaq1 and delwaq2 executables...
Is there a away to do this or do I always need the GUI?

Thanks in advance,

João.
CT
Christophe Thiange, modified 7 Years ago.

RE: WAQ: Coupling with FLOW in LINUX (Answer)

Jedi Knight Posts: 125 Join Date: 11/15/12 Recent Posts
Hi João,

The coupling program is called coup203. It isn't open source yet but you got it together with the Deldt3D GUI. If you search your installation directories you should find it.

To use coup203, just call it without any arguments. It will look for it's input file, couplnef.inp, in the same directory.
The format of couplnef.inp is rather complex, so it is better to let the GUI write it for you. Besides couplnef.inf, coup203 also expects a default file, delw420.dat, in your run directory. If not there, you can copy delw420.dat from the default folder in your installation directory.

By the way, if you can afford to rerun your FLOW model(s), you could also configure FLOW to produce the necessary files directly (no need for coup203 anymore).

Regards,
Christophe