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

Ubuntu 32 bit install PATH

Drew Ackerman, modified 8 Years ago.

Ubuntu 32 bit install PATH

Youngling Posts: 6 Join Date: 4/5/12 Recent Posts
I am working on getting Delft3d up and going using Ubuntu 14.1 installed on a VMWare virtual machine. I think that my compilation has gone successfully following the outline above. Where things grinding to a stop is on page 25 where I try to run deltares_hydro.tcl. I export the path with "buildpath/bin" replaced with /home/delft3trunk/src/build/bin (where the deltares_hydro.tcl is). When I try to execute deltares_hydro.tcl in the 01_standard directory, I get a file not found error. I assume that I am not pointing the PATH in the right place but I'm not sure where else to point it.

Adri Mourits, modified 8 Years ago.

RE: Ubuntu 32 bit install PATH

Yoda Posts: 1221 Join Date: 1/3/11 Recent Posts
Hi Drew,

If you compile with "make ds-install", a ready-to-use directory "<yoursourcecodepath>\bin\lnx" will be created, containing all binaries. The script "<yoursourcecodepath>\examples\01_standard\" can now be executed without any copying around.
See "<yoursourcecodepath>\src\README" and "Download > Source code" on this site.