intro story Coast / Estuary

Coast / Estuary

Coastal systems are among the most dynamic physical systems on earth and are subject to a large variety of forces. The morphodynamic changes occurring to coastlines worldwide are of great interest and importance. These changes occur as a result of the erosion of sediments, its subsequent transport as bed load or suspended load, and eventual deposition. 
 
Estuaries are partly enclosed water bodies that have an open connection to the coast. Estuaries generally have one or more branching channels, intertidal mudflats and/or salt marshes. Intertidal areas are of high ecological importance and trap sediments (sands, silts, clays and organic matter).
Within the Delft3D modelling package a large variation of coastal and estuarine physical and chemical processes can be simulated. These include waves, tidal propagation, wind- or wave-induced water level setup, flow induced by salinity or temperature gradients, sand and mud transport, water quality and changing bathymetry (morphology). Delft3D can also be used operationally e.g. storm, surge and algal bloom forecasting. 
 
On this discussion page you can post questions, research discussions or just share your experience about modelling coastal and/or estuarine systems with Delft3D FM. 
 

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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: 71 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.
AA
Anonymous Anonymous, modified 7 Years ago.

RE: WAQ: Coupling with FLOW in LINUX

Jedi Master Posts: 333 Join Date: 7/30/20 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: 71 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.
AA
Anonymous Anonymous, modified 7 Years ago.

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

Jedi Master Posts: 333 Join Date: 7/30/20 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