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. 




Sub groups
D-Flow Flexible Mesh
Cohesive sediments & muddy systems


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RE: delft-waq coupling error 6005

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delft-waq coupling error 6005
coupling error6005 mnksrc
Answer (Unmark)
3/3/17 4:47 AM
need help!!!
I am trying to couple flow and waq modules.

The flow ran successfully and generated the com- file for the coupling. When I try to run the coupling program, I get the following error message. Can anyone suggest what might be wrong in my flow or coupling set up? Thanks

Delft3D-FLOW - Water Quality
Deltares, COUP203 Version, Jan 18 2013, 09:42:45

PC/Windows/Linux version

MMAX = 302
NMAX = 12
KMAX = 2
Error reading NEFIS element MNKSRC
NEFIS error code = 6005

NEFIS message 6005:
Element 'MNKSRC ' does not exist in definition file

Exit from Delft3D-Coupling

child process exited abnormally
RE: delft-waq coupling error 6005
Answer (Unmark)
3/6/17 1:10 PMas a reply to Dian Wen.
That is a rather surprising error, as this has been working for many years. Could you attach the com files (both .dat and .def) to this post? I would like to have a closer look.
RE: delft-waq coupling error 6005
Answer (Unmark)
3/31/17 11:38 AMas a reply to Dian Wen.
Sorry I'm a bit late in answering. The problem is that FLOW doesn't write the MNKSRC variable any more when it is zero, but the coupling program still want to read that one, even if it is zero. The best way is to avoid the coupling program at all, and switch on 'write WAQ output' in the FLOW user interface (on the output panel).
RE: delft-waq coupling error 6005
Answer (Unmark)
6/14/17 1:57 PMas a reply to Michelle Jeuken.
How did you solve your problem?

I am also experiencing error 6005 in the coupling.

Thank you.

ONLINE generate big size files.
RE: delft-waq coupling error 6005
Answer (Unmark)
6/14/17 3:29 PMas a reply to João Paulo Ferreira.
I did a test with and without DISCHARGE and verified that the coupling only works if you put at least one DISCHARGE avoid the error:

NEFIS message 6005: Element 'MNKSRC' does not exist in definition file

I tested with a WAQ (inlet) tutorial.
RE: delft-waq coupling error 6005
Answer (Unmark)
6/20/17 11:35 AMas a reply to João Paulo Ferreira.
Hi João,

When the ONLINE or export WAQ input files are getting to big, please check the settings you have made for this coupling on the extra panel. The files should be about the same size as when you use the communication file with the same settings, but when you use the communication file (depreciated for WAQ coupling), you have to run the coupling program separately, and get the same amount of data in the end as with the online coupling.

Adding at least one operation with a discharge of 0.0 is a good workaround. But I also fixed te coupling program. Attached to this message is the latest version.

Attachments: coup203.exe (1,289.0k)