intro story 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.




Sub groups
D-Flow Flexible Mesh

Cohesive sediments & muddy systems


Message Boards

*** ERROR: Unable to open file SWANOUT2

A D, modified 2 Years ago.

*** ERROR: Unable to open file SWANOUT2

Youngling Posts: 15 Join Date: 9/25/17 Recent Posts


I am trying to run an online flow-wave coupled model. The model runs fine for about 12% when I get the following error - 


>>...End of SWAN run
  Allocate output fields
  Read SWAN output
*** ERROR: Unable to open file SWANOUT2

I couldn't find this error or a solution anywhere else on the internet. Any help would be greatly appreciated.

Thank you

lean red, modified 8 Months ago.

RE: *** ERROR: Unable to open file SWANOUT2

Youngling Posts: 1 Join Date: 6/30/20 Recent Posts
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keth kin, modified 20 Days ago.

RE: *** ERROR: Unable to open file SWANOUT2

Youngling Posts: 1 Join Date: 2/12/21 Recent Posts
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