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


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Threads with tag compilation .

Thread Started By Replies Views Last Post not generated when compiling Ed Bennett 1 560
Ubuntu compile - open_missing_mode error Seb Pitman 6 5610
The never ending story with NETCDF - A guide for linux compilation Giovanni Besio 1 1697
Windows 10 Compilation Error Will Parker 9 8332
best tags version? Katixa Lajaunie 4 1413
Compiling Problems - Tag 5389 Dave Unwin 4 9044
Compiling Delft3d in OpenSuse 13.1 Giovanni Besio 10 7449
expat.h in the system but not being found Tiago Silva 8 6298
Compiling Delft3d in OpenSuse 13.1 Giovanni Besio 10 7449
Fortran runtime error Moritz Lehmann 10 7840
Executable Missing Paul Evans 1 2220
Compilation on Linux: general remarks Adri Mourits 9 10355
Compilation on Windows: general remarks Adri Mourits 1 4239
Compilation errors for tag versions 4709 & 4739 Ben Williams 3 3169
Compiling D3D 6.x vs 4.x and 5.x in VS2008 and IFORT11/12 Ben Williams 1 2580
Compiling Delft3D with OpenMPI Kai Rasmus 8 9034
Free windows compilers? Simon Waldman 2 2435
Compiling D3D with VS2010 and Intel Fortran Composer XE2013 SP1 Update 2... Ben Williams 15 7987
Compiling | Revision 3020 Tag | VS 2008 + iFort 11.1 Oliver Lojek 6 3694
Compilation Issues Jacob Krall 1 1699
Showing 1 to 20 of 22 entries.