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



  • Bert Jagers replied 7 Years ago.

    Error while linking in 'engines_gpl/flow2d3d/packages/flow2d3d/src'

    5 Posts 6165 Views 1 Answer
  • Adri Mourits replied 5 Years ago.

    Fedora 14

    3 Posts 3830 Views 1 Answer
  • Bert Jagers replied 7 Years ago.

    Delft3D grid to Google Earth KMZ

    2 Posts 9594 Views
  • JC
    Jessica Chassereau replied 7 Years ago.

    drag coefficient

    4 Posts 7687 Views 1 Answer
  • YF
    Yosef F, modified 7 Years ago.

    Manual for Delft open source

    1 Post 5360 Views 0 Answers
  • KW
    Koen Wildemeersch replied 7 Years ago.

    HOWTO. Install delft3d in ubuntu 10.04.2LTS with intel fortran 11.0/084

    19 Posts 15461 Views
  • Bert Jagers replied 7 Years ago.

    Problems with restart runs

    2 Posts 5270 Views
  • Bert Jagers replied 7 Years ago.

    Problem writing com files for delwaq

    4 Posts 7027 Views
  • Adri Mourits replied 2 Years ago.

    simulation time step

    7 Posts 11508 Views 3 Answers
  • RG
    Ricardo Guerreiro replied 7 Years ago.

    tables.f90(1226): error #6780

    4 Posts 6790 Views
  • Emiterio Hernandez replied 7 Years ago.

    How will the Delft3D open source affects installed licensed Delft3D

    4 Posts 8380 Views 2 Answers
  • Adri Mourits replied 7 Years ago.

    Building under Ubuntu

    36 Posts 53064 Views 7 Answers
  • Adri Mourits replied 7 Years ago.

    Make errors on MPICH2

    7 Posts 8227 Views 1 Answer
  • Arjan Tuijnder replied 7 Years ago.

    Delft3D Open Source on CentOS - Instructions

    9 Posts 9965 Views
  • BA
    Bilal Ahmed replied 1 Year ago.

    Delft 2 NetCDF

    7 Posts 12941 Views 1 Answer
  • DK
    Daijiro Kobashi replied 7 Years ago.

    an compiling error (/usr/bin/ld can't find -lfl)

    5 Posts 10620 Views 1 Answer
  • RG
    Ricardo Guerreiro replied 7 Years ago.

    building from the source code

    17 Posts 10430 Views 2 Answers
  • Jonathan King replied 2 Years ago.

    Are there any instructions for the source code files?

    8 Posts 7890 Views 4 Answers
  • Adri Mourits replied 7 Years ago.

    pthreadVCE2.dll issue

    2 Posts 6372 Views
  • Adri Mourits replied 6 Years ago.

    Support on running models

    21 Posts 38064 Views
Showing 1,081 to 1,100 of 1,106 entries.