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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

 


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How can i define wave time series at open boundaries?

ZM
zahra moosavi, modified 2 Years ago.

How can i define wave time series at open boundaries?

Youngling Posts: 21 Join Date: 12/22/14 Recent Posts
Dear All,

In my test case i have three open boundaries and i want to apply three different time series of wave data at related boundaries.
It would be grateful if any body can help me how can i do that.

Best Regards
JM
Joseph Morrow, modified 2 Years ago.

RE: How can i define wave time series at open boundaries?

Youngling Posts: 5 Join Date: 11/16/16 Recent Posts
Greetings,
I have had success using the TPAR file for uniform conditions along a boundary. The definition/format for the TPAR file is in the appendix of the wave manual.

In the GUI, under boundaries, you would select "from file" under specification of spectra, rename your TPAR file to have a *.bnd extension, and then you can select your TPAR file. You would need a separate TPAR file for each boundary you wish to use a time series for.
Hope this helps.
Cheers,
Joe
ZM
zahra moosavi, modified 2 Years ago.

RE: How can i define wave time series at open boundaries?

Youngling Posts: 21 Join Date: 12/22/14 Recent Posts
Hi Joe

Thank you for your consideration. I tried to do what you suggested but unfortunately the model crashed by this message:

D:\INCO\Movazafi\storm-beach\Modeling\Nushahr Model\New>rem exit
>>...End of SWAN run
*** ERROR: file 'norm_end' expected to signal a correct SWAN calculation

I attached my setup model. It is very kind of you if you can have a look to it to find any mistakes.

Best Regards
JM
Joseph Morrow, modified 2 Years ago.

RE: How can i define wave time series at open boundaries?

Youngling Posts: 5 Join Date: 11/16/16 Recent Posts
take a look at your TPAR files, they are tab delimited instead of space delimited, that made a difference for me. One other thing that might cause a problem is that your reference date is one day sooner than your start date, the 15th instead of the 16th. I believe when using the TPAR file it looks at the reference date in the wave model and expects that as your first date in the TPAR file.
ZM
zahra moosavi, modified 2 Years ago.

RE: How can i define wave time series at open boundaries?

Youngling Posts: 21 Join Date: 12/22/14 Recent Posts
Hi Joseph

Thank you for your comments. I did both of your suggestions but unfortunately the problem still exists. would you please check the boundary definition section of my test case?Actually i am not sure about the definition of boundary start and end points.

Best Regards
JM
Joseph Morrow, modified 2 Years ago.

RE: How can i define wave time series at open boundaries?

Youngling Posts: 5 Join Date: 11/16/16 Recent Posts
Hi Zahra,

I'd try switching it to the define boundary by orientation and then choosing the applicable direction that the boundary corresponds to, to see if it runs that way..if it does then you can refine your boundaries later.
Cheers,
Joe