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

Threads with tag compile .

Thread Started By Replies Views Last Post  
Compilation on Ubuntu (tag 59821): deltares_common_version_module Sebastian Krieger 4 1532
Changing the Sediment Transport Routines Seyed Moin091 Mojabi 0 804
compilation errors - windows *new attachment Nathan Cheshier 2 3139
MPI Linking error in Delwaq2 James Tomlinson 45 32861
Errors Compiling Delft3D on Windows 7 Chris C 2 2664
configure: error: Compiler can't find <expat.h> Selwyn Bergman 2 10485
Compiling and Parallel run question Jeff Hansen 6 3535
Error - Delft3D install ./ Drew Mahedy 1 2013
Make install mpi.mod error Drew Mahedy 1 6527
Compiling the trunk - issues and suggestions (Linux) Bogdan Hlevca 1 1547
Error Compiling Error LNK1123 Steven Micko 4 5103
Different results using Delft3D-FLOW version yun lang 15 7880 undefined reference to .... (Linux) Thomas Boyington 11 5769
compiling problems using Windows 7 and Intel Composer XE 2013 Johanna Sucher 7 7904
System cannot find the file Nuria Perez Luis 3 2677
Cannot load component library "" Jay Veeramony 7 5048
Compiling on Fedora 16 Giovanni Besio 2 2981
Showing 1 to 18 of 18 entries.