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Delft-WAQ General Suspended Sediment Model

LH
Li Haijun, modified 4 Years ago.

Delft-WAQ General Suspended Sediment Model

Youngling Posts: 15 Join Date: 7/4/14 Recent Posts
Hi everyone,

I included the "Sediment" process in the Delft-Flow to simulate the concentration of suspended sediment named "Sediment Mud" and it worked well. I could see the spatial distribution of the sediment concentration with QUICKPLOT.

The manual says that "the General Suspended Sediment Model" in the Delft-WAQ could simulate the suspended sediment too. However, when I used the susbstance file "sed_1fraction_04.sub" in the Delft-WAQ model to do the same simulation in order to see the result of comcentration of sediment,the concentration of IM1 was very different with the Sediment Mud in the results of Delft-Flow!!

I am not so familiar with the WAQ module. Does "IM1" represent the suspended sediment in the Delft-WAQ just as "Sediment Mud" in the Delft-Flow? And how can I adjust the parameters to get the right result of IM1 in the WAQ just as Sediment Mud in the Flow?

Thanks.

Li Haijun
Qinghua Ye, modified 4 Years ago.

RE: Delft-WAQ General Suspended Sediment Model (Answer)

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

Even though both WAQ and FLOW solve the transport equation, these 2 solvers are different, and they are for different purposes. WAQ didn't have consider bed level change, and flow didn't consider much in the bed layers by default. It is hard to give out the same answer if you didn't set up both models very carefully.

Is this the answer of your question?

Qinghua
LH
Li Haijun, modified 4 Years ago.

RE: Delft-WAQ General Suspended Sediment Model

Youngling Posts: 15 Join Date: 7/4/14 Recent Posts
Qinghua,

Thank you for your reply.
I do not know the WAQ model well so far. I will use FLOW more to simulate the sediment transportation.

Li Haijun