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

Delft 3d Flow error

Yadhunath E.M, modified 5 Years ago.

Delft 3d Flow error

Youngling Posts: 8 Join Date: 7/4/13 Recent Posts
I started modeling in d3d recently, as an initial step i try to model out the currents generated by tide. infact my model starts running for some time step then after it stopping i chnaged my simutation time steps to different minutes, but still the error persists. please help me to recover this.

error is

Starting Delft3D-FLOW computation ...
Deltares, FLOW2D3D Version, Aug 19 2014, 10:56:15
flow2d3d.dll entry Flow2D3D::Run

Part I - Initialisation Time Dep. Data module...
runid : k1
Part II - Creating intermediate files...
Part III - Initialisation of the Execution module...
Part IV - Reading complete MD-file...
Part V - Initialisation & checking input...
Part VI - Initialisation & checking second part...
Part VII - Initialisation output...
Part VIII - Start Simulation...

Time to finish 0s, 0.0% completed, time steps left 672
Time to finish 1m 13s, 0.1% completed, time steps left 671
Time to finish 1m 18s, 0.3% completed, time steps left 670
Time to finish 1m 23s, 0.4% completed, time steps left 669
Time to finish 1m 37s, 0.6% completed, time steps left 668

forrtl: severe (43): file name specification error, unit 32, file E:\keri\tri-rst.k1.20160223.******

Qinghua Ye, modified 4 Years ago.

RE: Delft 3d Flow error

Jedi Council Member Posts: 610 Join Date: 3/2/11 Recent Posts
Hi Yadhunath,

Refer to https://oss.deltares.nl/web/delft3d/coast-/-estuary/-/message_boards/view_message/455742#_19_message_457298.

I guess it is because your runid is too long.