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

Compilation Issues

Jacob Krall, modified 7 Years ago.

Compilation Issues

Youngling Posts: 1 Join Date: 5/19/11 Recent Posts
Hello All,

I've managed to compile the code on Windows 7, 64 bit, with Intel Fortran Compiler 12.1 using VS2008. I could not get DELWAQ to compile, so example 6 does not run. After reading around this site, I understand it is only possible to compile DELWAQ using VS2010.

I tried to use VS2010 to compile DELWAQ, but when I try to open the sln file for VS2010, I get many error messages saying that my version does not support .vcxproj. I have not been able to solve this issue.

Has anyone else had this problem?

Adri Mourits, modified 7 Years ago.

RE: Compilation Issues

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

It seems that the C++ compiler is missing in your VS2010. You can check this via the menu >> help >> about Microsoft Visual Studio. The Window that pops up should contain a line about "Microsoft Visual C++ 2010" (and a line about "Intel(R) Visual Fortran").