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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

Illegal option for reaeration formula

FG
Fatemeh GholamiMahyari, modified 2 Years ago.

Illegal option for reaeration formula

Youngling Posts: 23 Join Date: 4/8/16 Recent Posts
Hello Everyone

I am working on a wastewater pond modelling for almost a year. I am really enjoying working with D-waq. Besides my results seems very well. I should thank you for your excellent software and support team. However recently I have a difficult with CO2 reaetation . since I activated this process my model does not run and the error bellow appears in the window.


runid: 18nov

Parallel processing with 1 processor(s)

SIMULATION STARTED

INTEGRATION ROUTINE = 15
Illegal option for reaeration formula
Stopped with error code : 1

I attached lsp and inp file. If anyone can help me I would appreciate it.

Thanks
Fatemeh
AM
Arjen Markus, modified 2 Years ago.

RE: Illegal option for reaeration formula

Jedi Knight Posts: 223 Join Date: 1/26/11 Recent Posts
Hello Fatemeh,

the documentation states that for CO2 only the options 0, 1, 4, 11 and 13 are available. Would one of these suit your purpose?

Regards,

Arjen
FG
Fatemeh GholamiMahyari, modified 2 Years ago.

RE: Illegal option for reaeration formula

Youngling Posts: 23 Join Date: 4/8/16 Recent Posts
Dear Arjen

Thanks for quick respond and, I know what is the problem now. I did not pay attention to SWRearCO2 options. I think one of them can be the one I want.

Regards,
Fatemeh
FG
Fatemeh GholamiMahyari, modified 2 Years ago.

RE: Illegal option for reaeration formula

Youngling Posts: 23 Join Date: 4/8/16 Recent Posts
Dear Arjen

I changed SWRearCO2 to 0, 1, 4, 11 and 13 but I have the same problem. Did I miss something else?

Regards,
Fateme
AM
Arjen Markus, modified 2 Years ago.

RE: Illegal option for reaeration formula

Jedi Knight Posts: 223 Join Date: 1/26/11 Recent Posts
Are you sure that you changed the right parameter? I checked the code and also ran a small test - this message only appears if the option is outside the range 0 to 13. The options 11 and 13 are specific to CO2 but the others can be used - with some caution perhaps, as they are based on the physics, not the chemistry - for CO2 as well.