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DELWAQ

DELWAQ is the engine of the D-Water Quality and D-Ecology programmes of the Delft3D suite. It is based on a rich library from which relevant substances and processes can be selected to quickly put water and sediment quality models together.

The processes library covers many aspects of water quality and ecology, from basic tracers, dissolved oxygen, nutrients, organic matter, inorganic suspended matter, heavy metals, bacteria and organic micro-pollutants, to complex algae and macrophyte dynamics. High performance solvers enable the simulation of long periods, often required to capture the full cycles of the processes being modelled.

The finite volume approach underlying DELWAQ allows it to be coupled to both the structured grid hydrodynamics of the current Delft3D-FLOW engine and the upcoming D-Flow Flexible Mesh engine (1D-2D-3D) of the Delft3D Flexible Mesh Suite (or even other models such as TELEMAC).

'DELWAQ in open source' is our invitation to all leading experts to collaborate in further development and research in the field of water quality, ecology and morphology using Delft3D. Feel free to post your DELWAQ related questions or comments in this dedicated forum space. If you are new to DELWAQ, the tutorial (in the user manual) is a good place to start. A list of DELWAQ related publications is available here.

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Sub groups
D-Flow Flexible Mesh
DELWAQ

Cohesive sediments & muddy systems

 


Message Boards

How to switch off the advection terms in the Delft3D momentum equation?

GW
Guoxiang Wu, modified 6 Years ago.

How to switch off the advection terms in the Delft3D momentum equation?

Youngling Posts: 16 Join Date: 8/20/11 Recent Posts
Hi all,

I want to turn off the horizontal advection terms, to see the effects of nonlinear advection in the generation of tide asymmetry. I checked the code, and target the subroutines 'mom_cyclic' and 'mom_cw', which are called by subroutine 'uzd' and 'sud' in serial, respectively, in each half-timestep of the ADI scheme. Advection terms is calculated there and can be output. But when solving the momentum equations, the code for advection terms are not so clear and straightfoward. Does anybody know to switch off this term? Any suggestions are welcome!

Guoxiang
GW
Guoxiang Wu, modified 6 Years ago.

RE: How to switch off the advection terms in the Delft3D momentum equation?

Youngling Posts: 16 Join Date: 8/20/11 Recent Posts
the code is so sophisticated. Does anybody know where can I get the descriptions of variables?

Any response?
MS
mr seoo, modified 4 Days ago.

RE: How to switch off the advection terms in the Delft3D momentum equation?

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MS
mr seoo, modified 4 Days ago.

RE: How to switch off the advection terms in the Delft3D momentum equation?

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MS
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mr seoo, modified 4 Days ago.

RE: How to switch off the advection terms in the Delft3D momentum equation?

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Geneva Garcia, modified 4 Days ago.

RE: How to switch off the advection terms in the Delft3D momentum equation?

Youngling Posts: 1 Join Date: 2/26/21 Recent Posts
Em also looking for the best answer for this query