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. 
 

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Sub groups
D-Flow Flexible Mesh
DELWAQ
Cohesive sediments & muddy systems

 

 

Message Boards

Is it possible to use 3D gate to approximate the function of sluices

PD
Peng Dai, modified 1 Year ago.

Is it possible to use 3D gate to approximate the function of sluices

Padawan Posts: 59 Join Date: 8/2/12 Recent Posts
Dear all:

Is the hydraulic structure 3D gate available in 2-dimensional simulation ?
If yes, is it possible to use 3D gate to represent the sluice, i.e. to open and close the cell face at indicated time?

best,
Peng
PD
Peng Dai, modified 1 Year ago.

RE: Is it possible to use 3D gate to approximate the function of sluices

Padawan Posts: 59 Join Date: 8/2/12 Recent Posts
Dear,

I made a test on 3D gate with 2-dimensional simulation. It is successful.
However this question needs more test. Is possible to define a time dependent gate, the same function as sluices ?
Could anyone give some comments?

Regards,
Peng
Qinghua Ye, modified 1 Year ago.

RE: Is it possible to use 3D gate to approximate the function of sluices

Jedi Council Member Posts: 612 Join Date: 3/2/11 Recent Posts
Hi Peng,

According to my information, you cannot use 3D gate in a 2D simulation, though the program will still continue (without giving errors). I would think it would not function as you want. You need to set the vertical position of the gate, which you can only do it in 3D simulation. Pls double check.

For time dependent vertical position, you may need a RTC tool to support. Pls consult Chu Ao from Hohai University for more information. He has experiences on that, I believe.

Best Regards,

Qinghua