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

d_hydro ABORT: Cannot load component library "flow2d3d.dll"

Shantanu Vidyadhar Bhide, modified 2 Years ago.

d_hydro ABORT: Cannot load component library "flow2d3d.dll"

Youngling Posts: 10 Join Date: 8/31/18 Recent Posts

Hello All,

I have compiled the source code and I am able to run all example files successfully without any errors. When I open the GUI and solve the Flow package, it gives me an error saying: d_hydro ABORT: Cannot load component library "flow2d3d.dll"

I read on the website the following instructions: 

{ The term "myDelft3D" is used for the location/directory on your machine where you have chosen to install the Delft3D setup containing the GUIs. The default value for "myDelft3D" is "c:\Program Files (x86)\Deltares\Delft3D 4.xx.xx" on Windows.

Directory "myCode/bin/" contains a subdirectory named "win64". Copy this directory "myCode/bin/win64" to "myDelft3D/win32", replacing existing files }


In my case, "myCode/bin/" does not contain a subdirectory named "win64" but the one named "x64". Also my directory "myDelft3D/" does not contain "win32" but it contains a folder "flow2d3d" which has "bin32" in it.


I am able to run all the examples successfully, so what do you think might be the problem for this error? Should I try compiling all again with a clean checkout? 

Thanks in advance!

Best Regards,