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

Facing problem converting kml2ldb, grid2kml

Srp priom, modified 5 Years ago.

Facing problem converting kml2ldb, grid2kml

Youngling Posts: 1 Join Date: 4/17/14 Recent Posts
I am trying to do a design by taking a kml file from the google-earth, after taking that i convert it to ldb with matlab. But the land boundary is kind of straight line after converting. Any solution please. And also when i am trying to convert grid2kml i also found some error. Can someone help me with solution/providing all the conversion files/giving me link to download conversion files/telling me how can i download those files?? Thank you
K Liu, modified 5 Years ago.

RE: Facing problem converting kml2ldb, grid2kml (Answer)

Padawan Posts: 48 Join Date: 10/23/13 Recent Posts
Webinar 15 on, about open earth tool introduces some solutions for that. Good luck!