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

Domain Water Level Error

Leonardo de Jesus, modified 3 Years ago.

Domain Water Level Error

Youngling Posts: 5 Join Date: 1/23/12 Recent Posts
Hello all,

I'm trying to simulate hydrodynamics in a port located at the southeast brazilian coast. I set up a circular mesh and in the boundaries I set WL (tidal harmonics) in the east boundary and Neumann in the south and north boundaries. However the model crashes at the beginning (around 1% of the simulation) and when I check my results the WL is very irregular, mainly inside the port (I'm sending attached a snapshot of the WL). I have checked the boundaries, the bathymetry and time step, but I can't figure out what is the error.

Someone faced similar error? Any tips?

Thanks in advance,

Alejandro Paladio, modified 3 Years ago.

RE: Domain Water Level Error

Youngling Posts: 9 Join Date: 11/14/12 Recent Posts
Hi Leonardo,

Did you find an answer? I am doing something similar, if you haven't solved your problem, attach your files, I might help.
If you find an answer, please comment it.

Good day