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

Grid Generation Reservoir

Julie Arteaga Carrera, modified 4 Years ago.

Grid Generation Reservoir

Youngling Posts: 1 Join Date: 3/14/16 Recent Posts

I am beginner in Delft 3D and I have had some problems with the grid generation of my reservoir. The shape is a little complex and i tried to do the splines following the shape of the lake, but when I generated the grid, I found the next message : Spaghetti; spline both in M and N direction.

Please, I would appreciate any help or procedure about the best way to create the grid .


Qinghua Ye, modified 3 Years ago.

RE: Grid Generation Reservoir (Answer)

Jedi Council Member Posts: 610 Join Date: 3/2/11 Recent Posts
Hi Julie,

The spline lines are used to generate grid as the backbone-like. It should not be align with land boundary. You may refer to Delft3D RGFGRID User Manual, for example, Figure 3.12. Or you may follow one of the Delft3D training courses, which might save you a lot of time to start a working model.

I hope this is useful.


Carroll Konopelski, modified 2 Months ago.

RE: Grid Generation Reservoir

Youngling Posts: 1 Join Date: 12/16/20 Recent Posts
Reservoir flow simulation involves subdivision of the physical domain into a number of gridblocks. This is best accomplished with optimized grid point density and minimized number of gridblocks especially for coarse grid generation from a fine grid geological model. In any coarse grid generation, proper distribution of grid points, which form basis of numerical gridblocks, is a challenging task.