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


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What is Agile Testing Quadrants?

Leanpitch Tech, modified 1 Month ago.

What is Agile Testing Quadrants?

Jedi Master Posts: 380 Join Date: 10/1/20 Recent Posts
What is Agile Testing Quadrants?It is a matrix that helps testers to ensure that they have considered all of the different types of tests that are needed to deliver value.On one axis, we divide the matrix into tests that support the team and tests that critique the product. The other axis is divided into business-facing and technology-facing tests. The order of quadrants has nothing to do with the order and schedule of test execution. There are lot many factors that determine when to test, some of them are,
  • Project risk factors
  • The goal of the product
  • Legacy code or a greenfield project
  • Availability of testers to perform the testing
and so on. Product Prototyping