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


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RE: Run long-term AD using a repetitive HD pattern

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Run long-term AD using a repetitive HD pattern
delwaq - water quality hydrodynamic
Answer (Unmark)
4/19/17 6:29 PM
Hi all,

I would like to ask about the possibility of running a long AD model but using a repetitive HD pattern (e.g.:spring/neap cycle that repeats)
The idea behind this is that as you know the HD takes long time to simulate, while running an AD model (having the HD) is fairly quick.
This would be used to assess the cumulative fate of conservative substances over a long period of time.
I understand I am making some assumptions by doing this but that is ok at the moment.

I believe this was possible in the older versions but not sure if it can be done with the new Flexible Mesh version.

Any comments/guidance?

Thanks in advance,

RE: Run long-term AD using a repetitive HD pattern
Answer (Unmark)
4/20/17 5:49 PMas a reply to Fernando Alvarez.
Hi all,

just found in this manual (page 77/396)

a brief description and as it is explained, it should be eru straight forward.
I will try and have a look, anyway let me know if you have some tips