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. 




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



Message Boards


James Tomlinson, modified 7 Years ago.


Youngling Posts: 6 Join Date: 4/21/11 Recent Posts

I am trying to setup a grid using RGF grid, but I seem to get a lot crashes. This is on Windows 7 64bit with version 4.20.0026750. I think the set-up is quite simple but when I had a third spline that crosses all 5 of my vertical splines the grid generator fails with "Cannot attached spline to the grid" and then the whole programme crashes! It's very frustrating to work with because I then must load my land boundary and splines. I can not figure out a way to add a third horizontal spline without a crash.

Oliver Lojek, modified 7 Years ago.


Jedi Knight Posts: 111 Join Date: 4/30/13 Recent Posts
Hi James,

I am also using the GUI on Win 7 | 64 bit and it crashes quite often for no apparent reason. I just started saving major steps like coarse bndry splines, coarse splines, fine splines etc. This way one may progress and reload certain stages. But I was allowed to add splines?

Unfortunately I do not possess any other Windows version to crosscheck if it is due to the Win 7.

Has anybody similar problems? Or found a solution to it?


Bogdan Hlevca, modified 6 Years ago.


Youngling Posts: 23 Join Date: 3/28/12 Recent Posts

I found RGFgrid reliable only on Windows XP 32 bit. On anything else I have tried is very unstable and unreliable. On linux 64 bit crashes often specially when trying to insert a point in the grid.

I have a spare copy of XP laying around just for this purpose. The current dashboard suite is quite old and badly needs a new release for more modern architecture and OSes.

Are there any plans of releasing RGTGRID and QUICKIN under open source?

If yes, then this will be a good solution because we can compile the code with the current libraries and most likely the crashes will not happen anymore.

João Lencart e Silva, modified 6 Years ago.


Padawan Posts: 70 Join Date: 3/30/11 Recent Posts
Hi All,

I'm using Windows XP 32bit with and it still very buggy with things like refining (extra points are created at (x,y) = (0,0)) and rotating adminitration.
Compiling DD boundaries and pasting two also makes it crash or complain that no common boundary was found.
All of these operations I can do without any problem with version
I reported this on but without any response from the developers.

Does anyone knows how to file a bug on this things?