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

Use of SWAN spectrum files(.spc) to define my boundary wave conditions

MT
Manuel Taborga, modified 8 Years ago.

Use of SWAN spectrum files(.spc) to define my boundary wave conditions

Youngling Posts: 7 Join Date: 11/30/12 Recent Posts
Hi everybody,

I am new using the Delft3D with the WAVE-standalone module, and I have to generate my boundaries conditions from spectrum files (.spc) generated with the SWAN but in spite in the WAVE manual there are some pages(167-172) dedicated to this way of introducing these wave parameters, there is no explanation on how the Delft3D recognizes them to define the wave conditions at the boundaries. I have read some post that said you could force the wave conditions from .sp2 files(they have the same data structure like my .spc files, but I don't know what's the difference between them) modifying the .mdw file but there was not an explanation with the details.


Note: my SWAN files are 2D stationary Cartesian co-ordinate files


Thanks a lot,


Regards,

Manuel
MT
Manuel Taborga, modified 8 Years ago.

RE: Use of SWAN spectrum files(.spc) to define my boundary wave condition (Answer)

Youngling Posts: 7 Join Date: 11/30/12 Recent Posts
Well, after seeking it in the foro I think I have the correct answer:



1) first of all, you must to complete all the data inputs of the wave input menu of the WAVE module (because if you modify before the .mdw file and you try to open it, it will crash),
but not the boundary menu

2) change the extension name of the SWAN spectrum file: from .sp2 into .bnd

2) finally, you have to put these keywords at the end of your .mdw file



[Boundary]
Name = Boundary1
Definition = fromsp2file
OverallSpecfile = wave_spectrum_file.bnd
RM
RC Mickey, modified 4 Years ago.

RE: Use of SWAN spectrum files(.spc) to define my boundary wave condition

Youngling Posts: 1 Join Date: 5/21/14 Recent Posts
Thanks for this!