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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

.hyd-files ('com-runid.lga','com-runid.vol','com-runid.are', ....)

GS
Gholamreza Shiravani, modified 1 Year ago.

.hyd-files ('com-runid.lga','com-runid.vol','com-runid.are', ....)

Padawan Posts: 65 Join Date: 6/25/16 Recent Posts

 Hi Arjen, could you tell me please, how .hyd-files ('com-runid.lga','com-runid.vol','com-runid..are', ....) are  assigned to SURF, Volume,Temp, Tau, ... variables in Inputs? In other words, how delwaq knows that Temp in its subroutines will be read from  ,'com-runid.tem'?

AM
Arjen Markus, modified 1 Year ago.

RE: .hyd-files ('com-runid.lga','com-runid.vol','com-runid.are', ....)

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

The short answer is: it does not know. The longer answer is: the user-interface reads the hyd-file and based on the keywords assigns the file names to the various items. If the substances file, for instance, includes a reference to temperature as a process parameter (instead of a "substance" to be modelled) then it will know that the file name associated with the keyword "temperature-file" is to be attached to the process parameter "Temperature". There is only a very little bit of magic involved ;).

GS
Gholamreza Shiravani, modified 1 Year ago.

RE: .hyd-files ('com-runid.lga','com-runid.vol','com-runid.are', ....)

Padawan Posts: 65 Join Date: 6/25/16 Recent Posts

Thanks so much :);).