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

Created 2way-coupling communication file error

HJ
Hirejet John, modified 4 Years ago.

Created 2way-coupling communication file error

Youngling Posts: 11 Join Date: 4/3/13 Recent Posts
Hi, i`m delft3d waq user in korea.
In delWAQ(Waterquality) model, input file are correlate with flow or sediment model result.
Flow and sediment are is performed at the same time and it can be created com-file.
Next, user execute coup2.exe. and waq input file made this performance.

At present, my interest are 2way coupling(flow, sediment, wave).
Flow, wave and sediment are performed at the same time and it can be created com-file.
Next, to use this as an input of the waq model.

Now, user performed 2way-coupling, com-file not created and initial information saved com-file.
Performed every time flow, wave and sediment data are not save com-file.


This problem is user setting 2way-coupling error? or fixed code so called 'rewind' ?

If i get a similar type of sample files available?

please tell me solve this problem..

Have a good day~
MJ
Michel Jeuken, modified 4 Years ago.

RE: Created 2way-coupling communication file error

Jedi Knight Posts: 154 Join Date: 1/21/13 Recent Posts
Dear Hirejet John,

When I understood correctly, you do not get a proper communication file for water quality when do a coupled FLOW-WAVE(-SEDIMENT) calculation. This is a know unfortunate problem.

There is however a solution in turning on 'Export WAQ input' on the last Output screen in the FLOW user interface. You can then for to the 'Edit WAQ input' screen to set up in a similair way that the coupling does what period and interval you would want for WAQ. This way FLOW will convert directly into WAQ input, and conversion of a communication file is necessary any more (no coup203 needed). The ouput and hyd-file should be directly usable in WAQ.

regards,
Michel
HJ
Hirejet John, modified 4 Years ago.

RE: Created 2way-coupling communication file error

Youngling Posts: 11 Join Date: 4/3/13 Recent Posts
Thanks for your good answer

Every time thanks

Have a nice day & good luck!!