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



  • Richard Measures replied 8 Months ago.

    Is there a problem with the SVN server?

    4 Posts 1725 Views
  • michael schaferkotter replied 8 Months ago.

    dflowfm build error

    2 Posts 1196 Views
  • EL
    Esteban Lacunza replied 8 Months ago.

    vs_l.c not found

    2 Posts 1200 Views
  • JA
    John Anderson replied 8 Months ago.


    7 Posts 2379 Views
  • JO
    Jennifer Ogrodnick, modified 8 Months ago.


    1 Post 736 Views
  • JB
    Jose Beya, modified 8 Months ago.

    Autoreconfig failed Centos7 release

    1 Post 708 Views
  • SW
    Sun Wanguang, modified 8 Months ago.

    Who can give me a trial of license?

    1 Post 552 Views
  • BO
    Bernardo Oliveira, modified 8 Months ago.

    DELFT 3D GUI under OSX

    1 Post 778 Views
  • JB
    Jose Beya replied 8 Months ago.

    GUI pre-/post-processing programs for Delft3D on Linux

    15 Posts 15812 Views 1 Answer
  • Mitya Menshikov, modified 8 Months ago.

    Variables "sour" and "sink" in heatu.f90

    1 Post 1024 Views 0 Answers
  • shanas pr, modified 9 Months ago.

    Delft3d flow error in PARALLEL (zeta layer) linux and works well in windows

    1 Post 1142 Views 0 Answers
  • HM
    Hanieh Mohamadi Moghadam, modified 9 Months ago.

    Delft3D different versions compatibility

    1 Post 1020 Views
  • HM
    Hanieh Mohamadi Moghadam, modified 9 Months ago.

    setting the number of active cores for Delft3D on Linux

    1 Post 1016 Views
  • Bert Jagers replied 9 Months ago.

    Periodic Boundary Conditions

    3 Posts 2522 Views
  • Michelle Jeuken replied 9 Months ago.

    Z model and D-waq

    2 Posts 1423 Views
  • Adri Mourits replied 9 Months ago.

    Too many errors in compiling on Visual Studio

    4 Posts 2191 Views 0 Answers
  • Adri Mourits replied 9 Months ago.

    question related to Delft3D-FLOW

    4 Posts 1702 Views
  • EE
    Esther Espinoza, modified 9 Months ago.

    Error when starting simulation in FLOW

    1 Post 1068 Views
  • YD
    yafei Duan replied 9 Months ago.

    Problem of Exporting to TecPlot File in QuickPlot

    7 Posts 7147 Views
  • HK
    Hans K, modified 10 Months ago.

    Group Velocity Calculation for Multiple Wave Components

    1 Post 318 Views 0 Answers
Showing 101 to 120 of 1,106 entries.