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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

Qs about parallel run: "reading complete MD files"

K Liu, modified 6 Years ago.

Qs about parallel run: "reading complete MD files"

Padawan Posts: 48 Join Date: 10/23/13 Recent Posts
Dear all,

I have just set up a flow wave coupled model, but run into a wiered problem. If I run this model in serial mode, it is running fine; but when I put it on multiple cores, e.g. 4 cores, the model stuck at "Part VI. Reading complete MD- files", taking forever at that step, which means it fails to read the input or start simulation.

Since it doesn't report any error message, I have no idea what is wrong in my input files. Could any one share some experience what to check and how to figure out the problem?

Andrea Cimatoribus, modified 3 Years ago.

RE: Qs about parallel run: "reading complete MD files"

Youngling Posts: 4 Join Date: 3/8/16 Recent Posts
Having the same problem here, only when using the executable from intel compiler (code version 6118).