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 error .

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error lnk 2001 compiling on windows Revision 65708 tag 7545 Jelian Reyes 0 145
Compilation Error with Delft3D source code Version 7545 in ubuntu 19.04. sivaiah Borra 0 65
Compilation Error in Win10 with VS2017 and IVF2019 Baogan Liao 3 2313
Error Compiling Source Code 7545 on Windows Shantanu Vidyadhar Bhide 14 7678
Ubuntu compile - open_missing_mode error Seb Pitman 6 5606
Fatal error LNK1181 while compiling Juilo Leva Lopez 3 4795
Error LNK2001 when compiling tag version 7545 Mohammed Almoghayer 3 2168
Compiling on OS X with mpich George Breyiannis 6 5428
Error compiling Delft3D source code VS 2017 and IFORT18 Pietro Mazzon 15 12417
Compilation error (mainly related to the error LNKxxx) Peng Dai 4 1638
Windows 10 Compilation Error Will Parker 9 8317
Compilation Failure at 80percent Hafizur Rahman 1 626
Missing delwaq1.exe Yingxuan Chen 1 1224
Compiling v6118 in Windows 10 K Liu 5 3736
Problems compiling version 6118 Raiana Oliveira 3 4585
cannot open afxres.h durring compilation Sander Paekivi 2 5629
Compiling Delft3d in OpenSuse 13.1 Giovanni Besio 10 7442
compilation errors - windows *new attachment Nathan Cheshier 2 3277
Error Compiling Error LNK1123 Steven Micko 4 5572
Compilation Error(LNK1181 & ERROR while copying) Akash Melethil 1 2575
Showing 1 to 20 of 26 entries.