Migration status

  • Home Page: Activity map.

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

Attitude plays an important role. Wrong attitude is a real disability.

Leanpitch Tech, modified 7 Days ago.

Attitude plays an important role. Wrong attitude is a real disability.

Padawan Posts: 57 Join Date: 10/1/20 Recent Posts
Attitude plays an important role. Wrong attitude is a real disability.A little girl always walks down from her school to home. One day, the weather was not promising. At the time of her return, thunderstorm and lightning strike. Her mother was worried, that her daughter might be frightened .She drove her car on the same route to get her. What she saw, whenever thunderstorm and lightning strike. A little girl stops, look up and smile.Mom: “Why are you stopping?”Little girl: “Mom, God is busy in taking my pictures, I am trying to look pretty”This is ATTITUDE!!!We all need to bring change but should not stop at bringing change, it’s a temporary shift. For eg: Put a glass of water in refrigerator, it will become ice after some time. Keep it again outside refrigerator, it will gain its original form.We need to transform ourselves, A Permanent shift. For eg: A caterpillar decides to turns out to be beautiful butterfly, process called metamorphosis.But do all caterpillars turns to butterfly, No, lot more die in the middle. Like, we humans try to transform ourselves but give up in the middle or at the verge of completion but those who don’t, live their lives to the fullest.Remember, in the path of excellence if you have ego and anger at your end, you do not need an opponent.  It’s high time to move from “can-do-attitude” to “I am doing reality”. Don’t doubt yourself, doubt create mountains. Have faith, faith tunnels through those mountains. Work with all teammates to inculcate right culture in the team. We need people around us to develop ourselves. There is famous saying by, Pastor Martin Niemoller (He was a German and Anti-Nazi):“First they came for Jew, I did not speak as I was not a Jew, then they came for Trade Unionist, I did not speak as I was not a Trade Unionist, then they came for Communist, I did not speak out as I was not a Communist, then they came for Catholic, I did not speak as I was not a Protestant, then they came for me and no one left to save me”.It’s always team wins or team fails, not individual. Can Indian team win a match if we have 11 Sachin Tendulkar in a team? No, we need different competencies to make it high performing team.When I hear all these, I get motivated. Motivation is good if we do something with it otherwise that energy will disappear. It’s like a helium balloon, you set it free, and it will reach to its destination. If you keep it in room, it will deflate and will crumple to the floor. When we get motivated, we get excited and uncomfortable at the same time. We become more cautious and don’t take actions. Voice of inactions turns to voice of Excuse. There are 4 Voice of Excuses. Coaching agile transitions