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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

PLCT crashes whenever I save a new or edited process

MA
Matthew Adams, modified 3 Years ago.

PLCT crashes whenever I save a new or edited process

Youngling Posts: 19 Join Date: 8/20/15 Recent Posts
This was originally only 50% of the time, but now it happens all the time. I've reinstalled DELWAQ once already to try to resolve this. At my wit's end.

PLCT version 5.04.01.29071

Any ideas?
AM
Arjen Markus, modified 3 Years ago.

RE: PLCT crashes whenever I save a new or edited process

Jedi Knight Posts: 223 Join Date: 1/26/11 Recent Posts
This problem has surfaced with the use of a new version of the compiler. Unfortunately we have so far not been able to solve it. Or even to find where it originates. I will try again this week, but it is a thoroughly nasty issue.
MA
Matthew Adams, modified 3 Years ago.

RE: PLCT crashes whenever I save a new or edited process

Youngling Posts: 19 Join Date: 8/20/15 Recent Posts
Thanks Arjen. I installed DWQ on a different computer and it seems to be working ok so far, with only one PLCT crash despite writing over a dozen new process files... however the PLCT crash issue didn't happen straight away after the installation on my previous computer so I will not yet assume that it is solved... The previous computer OS was WIndows 7 and the current OS is Windows 10, so I will install Windows 10 on the first computer and reinstall Delwaq to test if it might be an OS issue (unlikely but we'll see).
AM
Arjen Markus, modified 3 Years ago.

RE: PLCT crashes whenever I save a new or edited process (Answer)

Jedi Knight Posts: 223 Join Date: 1/26/11 Recent Posts
I thought I had found a reliable sequence of actions to reproduce the problem, even though it did not occur within the debugger, but when I tried this afternoon to see if I could shorten that sequence, so that - perhaps - it would narrow down the search for the culprit in the code, it all of a sudden worked as smoothly as one would like.

This is really annoying: knowing there is some bug that might surface at any time and not having the means to hunt it down.

As long as it does work, let us accept that, but as soon as you see the same thing happening again, let us know.