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intro story DELWAQ

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

RE: Beginner Problem! Help I can't get the program to work.. need it ASAP

FA
Francoise Hanz Detriech Maano Almarza, modified 4 Months ago.

Beginner Problem! Help I can't get the program to work.. need it ASAP

Youngling Posts: 6 Join Date: 2/17/19 Recent Posts

Hi! I've been studying Delft3D and going through all the forums and can never get the program to run completely. I am stuck at 13%... Program always say Water Level too high. I think it has to do with my discharge data? 

 

I have attached the files and data. I hope you can help me out!

 

 

 

Amr Salama, modified 4 Months ago.

RE: Beginner Problem! Help I can't get the program to work.. need it ASAP

Youngling Posts: 12 Join Date: 9/16/15 Recent Posts

Hi Francoise,

 

Could you upload the Mdf file with other files (ex: water levels, boundary conditions etc..), to detect the problem ?

FA
Francoise Hanz Detriech Maano Almarza, modified 4 Months ago.

RE: Beginner Problem! Help I can't get the program to work.. need it ASAP

Youngling Posts: 6 Join Date: 2/17/19 Recent Posts

Hi Amr,

 

The mdf file, boundary conditions, etc are included in the rar file I posted. 

Amr Salama, modified 4 Months ago.

RE: Beginner Problem! Help I can't get the program to work.. need it ASAP

Youngling Posts: 12 Join Date: 9/16/15 Recent Posts

Hi Francoise,

I have reviewed your model. First of all, the grid orthogonality is very high (0.316), it shouldn't exceed 0.02. Also, the M and N smoothness of the grid are exceeding 1.2. you have to adjust your grid first. 

Second, i recommend you to start the water level initial condition with zero. 

Hope that could help you.

Amr