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



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i don't understand that the maening of the 'discharge' in waq modelling.

Anonymous, modified 4 Years ago.

i don't understand that the maening of the 'discharge' in waq modelling.

Posts: 1

when i try to test the waq modelling using the waq tutorial, the set of waq tutorial is 'friesian_tidal_inlet', there are difference 'discharge rate' between the flow input and waq input.
the value of discharge in flow input is '3 cms' and the value of discharge of waq is '10 cms'. So, is there special reason for the difference between the flow and waq?
and, could you tell us references data for related waq tutorial model set such as papers or reports el al.

deok woo
Michel Jeuken, modified 4 Years ago.

RE: i don't understand that the maening of the 'discharge' in waq modelling (Answer)

Jedi Knight Posts: 154 Join Date: 1/21/13 Recent Posts

I don't think there a a particular reason for the difference in values. It is is just a show case without any real background. I guess that the Delwaq example is based on an older version of the FLOW example, and the FLOW example was changed later on. There are no publications about this simple example.