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

Some problemes with DelftDashBoard?

Bing Zhao, modified 4 Years ago.

Some problemes with DelftDashBoard?

Youngling Posts: 13 Join Date: 5/31/16 Recent Posts
Hi, there

When I start DelftDashBoard in the Matlab, the Observation Stations toolbox is inactive. Why?
And When I start DelftDashBoard as an standalone executable, the import tag in the bathymetry toolbox is inactive. Why?

Can you help me? Thank you!

Akalanka Silva, modified 4 Years ago.

RE: Some problemes with DelftDashBoard?

Youngling Posts: 4 Join Date: 10/21/15 Recent Posts
Hi Bing Zhao,

This is probably due to a missing file in your local data folder.
Try to find "observation stations" data from the original folder. (..trunk\matlab\applications\DelftDashBoard\toolboxes\ObservationStations\data\)
and copy all the files in to your local data folder. (..Dashboard files\data\toolboxes\ObservationStations\)
Hope this will solve your problem.