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 DELWAQ to UnTRIM

WF
William Fleenor, modified 6 Years ago.

coupling DELWAQ to UnTRIM

Youngling Posts: 2 Join Date: 4/25/11 Recent Posts
The manual states: The Deltares staff supports the construction of these coupling programs for any mass conserving third party flow model.

We are having some difficulty and would like to know what kind of support we can obtain. Thanks.

Bill
MJ
Michel Jeuken, modified 6 Years ago.

RE: coupling DELWAQ to UnTRIM

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

Do you want to share the nature of the problems you run into on the forum? If are you looking for direct support, I think it is best to contact sales@deltaressystems.nl or support@deltaressystems.nl and ask for me, for an inquiry about support options.

From the title I guess that you are working with a coupling between Delwaq and UnTRIM. We are current in collaboration with BAW to develop and improve such a coupling, and recently made some changes to UnTRIM, the Delwaq user interface and Delwaq itself. We can update you on these changes, there might be a change that this can solve your problems as well.

greetings,
Michel Jeuken
WF
William Fleenor, modified 6 Years ago.

RE: coupling DELWAQ to UnTRIM (Answer)

Youngling Posts: 2 Join Date: 4/25/11 Recent Posts
Michel,

Thanks for your reply. Our goal is to be able to export a proper hydrodynamic file that can then be used in DELWAQ. We would prefer to run DELWAQ separately from an UnTRIM output file. We simply need to understand better the format and structure of the file DELWAQ requires.

Bill
MJ
Michel Jeuken, modified 6 Years ago.

RE: coupling DELWAQ to UnTRIM (Answer)

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

This is described in chapter 11.2 of the Input FIle Description.

An example of how these files are written can be found in our Delft3D flow model. Although Delft3D flow works with structured grids it will give you some idea. The starting point to where the Delwaq hydraulogical data is written can be found here in our open source code: https://svn.oss.deltares.nl/repos/delft3d/trunk/src/engines_gpl/flow2d3d/packages/io/src/output/wrwaqfil.F90.

Michel