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

Missing files (probably) in the setup.delft3d.openhydromorpho.exe

Elias Fakiris, modified 9 Years ago.

Missing files (probably) in the setup.delft3d.openhydromorpho.exe

Youngling Posts: 1 Join Date: 12/29/11 Recent Posts
Dear all,

I have recently given access to the the latest pre-compiled version available of Delft3D 4.00.01 (setup.delft3d.openhydromorpho.exe) but i can not find any way to cproduce deltares_hydro.exe or delftflow.exe no matter how hard i tried. The source code that you have sent contains only the transport_model.sln solution file. I would like to also download (if it is needed) the deltares_hydro solution which is located in the: [1]

according to the:

auto: [2]


for which i have no permission!!!

Please respond to my calling for help, or inform me if there is something i am not aware of.

Fakiris Elias
Adri Mourits, modified 9 Years ago.

RE: Missing files (probably) in the setup.delft3d.openhydromorpho.exe (Answer)

Yoda Posts: 1221 Join Date: 1/3/11 Recent Posts
Hi Fakiris,

Please have a look at

On, you have to register yourself (top right corner of the site). When registered you will have a "screen name", ending on ".x", and a password. You can use these credentials to "sign in" in (again in the top right corner). When signed in, you can post messages on the forum. You can use the same credentials to download the source code. See, section "Download and maintain using Subversion".