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

Delft 3D- flow module

Samira Ardani, modified 8 Years ago.

Delft 3D- flow module

Youngling Posts: 4 Join Date: 7/1/11 Recent Posts
I am trying to run a flow model by considering "Sediment" in "Pysical parameters".
There are errors when the flow model starts to run: "File is not available. Can not read the time points of the hydrodynamic flow results" and " Input file for Delft 3D-wave not found". I checked the time points in both flow and wave inputs and they correspond to each other.

Thanks in advance,

Bert Jagers, modified 9 Years ago.

RE: Delft 3D- flow module

Jedi Knight Posts: 201 Join Date: 12/22/10 Recent Posts
Hi Samira,

The messages in the second sentence suggest some problem with the input of the Delft3D-WAVE module.
How did you start this simulation: via the user interface or via a script/command line?
Can you provide more of the log-file or screen listing?

Have you been able to successfully run the FLOW module without coupling it to the WAVE module?

Samira Ardani, modified 9 Years ago.

RE: Delft 3D- flow module

Youngling Posts: 4 Join Date: 7/1/11 Recent Posts
Hi Bert,

I start running the model via the user interface and I am able to run the flow module without coupling it with wave module. Also, I run my "wave module" in "standalone" mode before coupling it with flow module and it works well and it has good results. But this error appears in coupling flow and wave module.

In the wave model, I have one computational grid and three boundaries and I use "uniform" boundary and "Parametric" spectra for each boundary for first trial running. I use default options in "physical parameteres" and " Numerical Parameters" part. The coupling interval is "30 min" and I entered 30 min in "output" tab in "store communication file" in my flow module. As I said before, the time frames are correspond to each other in both flow and wave module.

Katherine Cronin, modified 9 Years ago.

RE: Delft 3D- flow module

Padawan Posts: 42 Join Date: 2/23/11 Recent Posts
Hi Samira,

Can you attach the input files so we can take a look,


Gopiraaman LVS, modified 8 Years ago.

Delft 3D- flow Module- Delftflow.exe not found

Youngling Posts: 2 Join Date: 10/30/12 Recent Posts
Hi Katherine,

I am trying to run flow module using Delft Dashboard. But it gives an error saying that Delftflow.exe is not found.
Can you please advise me on this.

Thanks & Regards,
Katherine Cronin, modified 8 Years ago.

RE: Delft 3D- flow Module- Delftflow.exe not found

Padawan Posts: 42 Join Date: 2/23/11 Recent Posts
Hi Gopi,

Delft Dashboard looks in the environmental variables for the FLOW executable. These are updated when Delft3D is installed. Did you check that Delft3D installed

best wishes,