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

Interaction D-Waq and D-Part

Maria Gracioto, modified 1 Year ago.

Interaction D-Waq and D-Part

Youngling Posts: 8 Join Date: 7/26/17 Recent Posts


wanted to know if it is possible to interact a bloom of microorganisms in the D-WAQ with an oil spill on the Paticle Track.



Michelle Jeuken, modified 1 Year ago.

RE: Interaction D-Waq and D-Part

Jedi Knight Posts: 156 Join Date: 1/21/13 Recent Posts

It might be possible, but you will have to do some coding.


In the Delwaq Input file manual in chapter 2.3.1, you can see how to hook up Particle tracking in Delwaq. You will than have the concentrations of the oil spill available in Delwaq. There, you can add an extra processes that reduce available based on that oil concentration. How you could do that is described in the Open PLCT manual.

21712235 21712235 21712235, modified 7 Months ago.

RE: Interaction D-Waq and D-Part

Hello, Michelle, after using parallel computing flow module, I chose to calculate the core n = 24, because my computer is 24 cores. As a result, com files and hyd files are divided into 24 copies. Then I downloaded ddcouple and ran DDB files. As a result, only hyd files are merged, and the total size of the merged hyd files is 2.5 kb. My question is, why are files split after parallel computing? And why is the merged hyd file so small? Thank you for your advice.