User Forum of Software BASEMENT

Alyssa

User

From: Aix-en-Provence, France

Registered: 2019-10-28

Posts: 41

sediment transport continuity over weir

Hi

Is it possible to have sediment transport continuity over a weir in 1D? I've seen that the dredge source can be used for this purpose in 2D.

If yes, how to do it?

Thanks

Alyssa

Matteo Facchini

Developer

From: Trento

Registered: 2014-09-05

Posts: 281

Re: sediment transport continuity over weir

Hi Alyssa,

I sugget you to refer to the Input block structure, which you can find under the "Help" in the software's GUI.

There, just by searching "dredge", you can find:

"This sediment source simulates the dredging of sediments from the bottom of the cross section (only one soil is allowed). The user has to define the 'dredge_level' to which the dredging is limited, the 'dredge_trigger_height' which is the deposition necessary (trigger) to start the dredging and the 'grain classes' that can be dredged. Additionally the 'maximum_dredge_rate' for the dredging can be defined. (the dredged volume is given without porosity.) "

You can see how to activate a dredge even for your 1D case and how it works.

Alternatively, you can open your simulation with basement, go under MORPHOLOGY > SOURCE and there you can select the dredge, click on the question mark and you get the explanation on how it works.

I hope this helps.

Matteo

Alyssa

User

From: Aix-en-Provence, France

Registered: 2019-10-28

Posts: 41

Re: sediment transport continuity over weir

Hi Matteo

Thanks very much for this reply. I understand you can dredge this above the weir, but is it possible at the same time to insert it back (downstream the weir) what is removed?

Thanks

best wishes
Alyssa

Matteo Facchini

Developer

From: Trento

Registered: 2014-09-05

Posts: 281

Re: sediment transport continuity over weir

Hi Alyssa,

unfortunately, as far as i know, there is no way to redistribute the dredged sediment downstream.

What you could do is to run a first simulation to save the dredged volumes and a second one where you use those volumes to as a source downstream.

Best
Matteo