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

Which option to compue cell centre values should I use? (Flow module)

Esther Espinoza, modified 3 Years ago.

Which option to compue cell centre values should I use? (Flow module)

Padawan Posts: 25 Join Date: 4/6/17 Recent Posts
Hi, I hope you can help me with this. I'm new with delft3d but I'm using the flow module to model water level, my study area is an estuary. I made the grid and save the dep file but I didn't do it at the cell centers. I mean, when I made the interpolation I never choose grid cell centers, I just finished the whole interpolation and save the dep.

So now on the flow module (Domain-Bathymetry) I should choose the option "Values specified at Grid cell corners" right? Then, I'm not sure which of the three options :Max, Mean or Min to choose for "Cell centres values computed using" should I use. Which of these options would be the best for my type of study area?

Or maybe I can change the dep saving it at the grid cell centres without doing the whole interpolation again on Quickin?

Sorry if this is too obvious to ask. Thanks!

amr salama, modified 3 Years ago.

RE: Which option to compue cell centre values should I use? (Flow module)

Youngling Posts: 12 Join Date: 9/16/15 Recent Posts
Hi Esther Espinoza

I am interested in modeling hydrodynamics in an estuary which could resemble your case. for " Values Specified at " I have selected " Grid Cell Corners " and for " Cell Center Values Computed Using " i have selected " Max " . it works fine with me.