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

BedTransDueToWavesAtFlux parameter

Gabriel Ruiz, modified 7 Years ago.

BedTransDueToWavesAtFlux parameter

Padawan Posts: 59 Join Date: 9/30/11 Recent Posts
Hi modelers!

I'm working with the topic of hydro-morphodynamics in beaches, for this reason I use the models Wave + Flow + Mor of Delft 3d. My simulations are in 2D and I use the online option with Wave and Flow modules in a nested grid. Recently, in my mor file I activated the output parameters: BedTransDueToCurrentsAtFlux, BedTransDueToWavesAtFlux and SuspTransDueToWavesAtFlux, because I would like to understand the sediment transport patterns.
I run my morphological simulation without any problem and using Quickplot, I try to see the plots of these output parameters.
I have been able to analyze the BedTransDueToCurrentsAtFlux plot but my problem is that I don't have any plot if I try to get the plot BedTransDueToWavesAtFlux and SuspTransDueToWavesAtFlux parameters.
Why I can't get the maps of these two parameters?
I have checked the FLOW manual in order to know if my mor file has any mistake, but the file seems that is right.

Any idea to overcome this problem?


Bert Jagers, modified 7 Years ago.

RE: BedTransDueToWavesAtFlux parameter (Answer)

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

At this moment only the (undocumented) implementation of the transport formula following Van Rijn (2007) papers -- sometimes referred to as TRANSPOR2004 --- distinguishes between "bed-load due to currents", "bed-load due to waves" and "suspended load due to waves". All other sediment transport formulations just return one sediment transport rate which is labelled "bed-load transport due currents". Hence for most transport formulae the transport quantities due to waves will contain all zeros and hence result in an empty plot.

Best regards,

Gabriel Ruiz, modified 7 Years ago.

RE: BedTransDueToWavesAtFlux parameter

Padawan Posts: 59 Join Date: 9/30/11 Recent Posts
Hi Bert!

I got it.

Thank you!