intro story D-Flow FM


D-Flow Flexible Mesh

D-Flow Flexible Mesh (D-Flow FM) is the new software engine for hydrodynamical simulations on unstructured grids in 1D-2D-3D. Together with the familiar curvilinear meshes from Delft3D 4, the unstructured grid can consist of triangles, pentagons (etc.) and 1D channel networks, all in one single mesh. It combines proven technology from the hydrodynamic engines of Delft3D 4 and SOBEK 2 and adds flexible administration, resulting in:

  • Easier 1D-2D-3D model coupling, intuitive setup of boundary conditions and meteorological forcings (amongst others).
  • More flexible 2D gridding in delta regions, river junctions, harbours, intertidal flats and more.
  • High performance by smart use of multicore architectures, and grid computing clusters.
An overview of the current developments can be found here.
The D-Flow FM - team would be delighted if you would participate in discussions on the generation of meshes, the specification of boundary conditions, the running of computations, and all kinds of other relevant topics. Feel free to share your smart questions and/or brilliant solutions! 


We have launched a new website (still under construction so expect continuous improvements) and a new forum dedicated to Delft3D Flexible Mesh.

Please follow this link to the new forum: 

Post your questions, issues, suggestions, difficulties related to our Delft3D Flexible Mesh Suite on the new forum.





Sub groups
D-Flow Flexible Mesh
Cohesive sediments & muddy systems


Message Boards

Storm surges automation

Pradeep C, modified 6 Years ago.

Storm surges automation

Youngling Posts: 16 Join Date: 9/2/11 Recent Posts

I have run the storm surge model using Delft Dashboard. I have prepared all the input files requires using Delft Dashboard.
Now for my study area I have around 2500 cyclone tracks in different time periods.

Can I automate this process. We have to change the start time ,end time and cyclone track, so that the " spider web file" is generated.
Then the Delft -flow should run and the results file stored in specific file name of the Cyclone track.

Is this possible?
Guoxiang Wu, modified 6 Years ago.

RE: Storm surges automation

Youngling Posts: 16 Join Date: 8/20/11 Recent Posts

theoretically it's possbile. For all my cases I use the same grid and bathymetry, and other parameters, so just need to prepare all the *.mdf files, time, (cyclone data). I haven't used Delft3D Dashboard, I use the compiled exeutables. That would be easy and what I need to do is submit all the running jobs.