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

Starting Delft3D-FLOW computation ...

Md Bin Siddique, modified 8 Years ago.

Starting Delft3D-FLOW computation ...

Padawan Posts: 42 Join Date: 12/17/12 Recent Posts
Huy when i try to run my flow module there show this message.

Starting Delft3D-FLOW computation ...
ERROR: Can not open shared library "flow2d3d.dll".
deltares_hydro.exe <config.ini>
<config.ini> : Name of configuration file in ini format
Example configuration file:
Name = flow2d3d
MdfFile = f34

GetLastError returns code 998

Please helip me.

and please inform me what is the procedure delft 3d setup. (please write step by step)
Katherine Cronin, modified 8 Years ago.

post moved to Obtaining/Compiling the code

Padawan Posts: 42 Join Date: 2/23/11 Recent Posts
Your post is moved to Obtaining/compiling the code as you seem to have a problem with installation,