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. 
 

** PLEASE TAG YOUR POST! **

 

 

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

 

 

Message Boards

Coupling flow and wave

FM
florian MONETTI, modified 7 Years ago.

Coupling flow and wave

Youngling Posts: 21 Join Date: 3/12/13 Recent Posts
Hi,

When I try to run a FLOW-WAVE run, I have this error:

DioError 902 : Could not open WAVE2FLOW_DATA.txt_WAVE2FLOW_DATA.data for deletion

I'm working on linux. Do you know why? I think there is a problem with the creation of files WAVE2FLOW_DATA.txt and WAVE2FLOW_DATA.data from the dioconfig.ini.


Other question:

If I used #.amu#, #.amv#, #.amp# files, is it posible to have wind conditions with SWAN=?
When I don't active wind conditions but only additional parameters, I can't have the wind growth function active.

I have tryed to create wnd spatial varying files with matlab as the same way as for #.amu#, #.amv#, #.amp# files (it goes well with these files) but It doesn't work.
Someone has an example of spatial varying wind file?

Thks

Florian
Adri Mourits, modified 7 Years ago.

RE: Coupling flow and wave

Yoda Posts: 1212 Join Date: 1/3/11 Recent Posts
Hi Florian,

I added info about FLOW-WAVE runs to the FAQ.

You can feed wind files to WAVE. They are transferred to SWAN.

See attachment.

Regards,

Adri
FM
florian MONETTI, modified 7 Years ago.

RE: Coupling flow and wave

Youngling Posts: 21 Join Date: 3/12/13 Recent Posts
Hi Adri,

Thanks for your answer.

For the error with FLOW-WAVE run, I will check the FAQ.
I checked the wind files you gave me.
As I said, I have no problem for generate meteo_on_equidistant_grid but meteo_on_computational_grid.
The program say me: error reading wind v-field.

Do you have an example of one time step meteo_on_computational_grid with a bigger grid please?


What I'm not sure to undertsand is the utility of wind files and meteo files.

If I use additional files (Filwu,Filwv,Filwp), I don't need to specify wind inpunt files, isn't it?
The model read wind and pressure conditiosn from my meteo_on_equidistant_grid files?

But If I don't specificy wind input files, I can't have wave growth parameters active (and others...).

So, what Can I do?

Thank you very much for your help. I know you are very busy.

Regards,

Florian
Adri Mourits, modified 7 Years ago.

RE: Coupling flow and wave

Yoda Posts: 1212 Join Date: 1/3/11 Recent Posts
Hi Florian,

Attached is an example for meteo on the computational grid. This is an old fashioned method of prescribing wind and only works for FLOW, not for WAVE.

In FLOW:
special keywords are used for the different type of wind input files. Examples: filwu/v/p for equidistant and fwndgu/v/p for curvilinear wind, both on separate wind grids.

In WAVE:
The keyword "MeteoFile" can be used to specify different types of wind/meteo input files. "MeteoFile" can be added both to the "[General]" block and the "[Domain]" block. It is also possible to specify uniform wind without using a "MeteoFile". Use the GUI for that.

Does this answer your questions?

Regards,

Adri
FM
florian MONETTI, modified 7 Years ago.

RE: Coupling flow and wave

Youngling Posts: 21 Join Date: 3/12/13 Recent Posts
Hi Adri,

I will do as you said me.
Great work with this forum.

Regards

Florian
U
Yego Mo, modified 6 Months ago.

RE: Coupling flow and wave

<a href="">Screen Printing</a>
<a href="">Foil Printing</a>
<a href="">Puff Printing</a>
<a href="">Tag Printing</a>
<a href="">DTG Printing</a>
<a href="">High Density Printing</a>