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.exe not found" (Delft-Flow)

Polliana Souza, modified 1 Year ago.

"D_hydro.exe not found" (Delft-Flow)

Youngling Posts: 2 Join Date: 1/25/18 Recent Posts
Hi, all! I'm new to Delft3D.
I am trying to run the MDF file on DELFT-Flow, but It had a error saying "D_hydro.exe not found";
I following the guide and I tried to compile the code to get the d_hydro;
I've been try to complile many tags versions, but when use the "SVN checkout",
I got another problem, with an error, and the files weren't download completely;
Lastest, I tried with Trunk version and I got an error (Image)
Anyway, I checked that the files are in the paste. Following the "README", I got double click in "Prepare.sln" and chose the Visual Studio and Ifortran versions, which I've installed (VS 2017, IFortran 2016), but I got this mensage in the seconde image.
I need help, cause I don't know how resolve this problem to give finally the d_hydro.exe (: