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

Threads with tag compilation error linux .

Thread Started By Replies Views Last Post  
Compiling errors: Dflow FM (tag 63258) on the CentOS, with Intel18 compiler john peng 2 1404
Ubuntu compile - open_missing_mode error Seb Pitman 6 6302
Linux Compiling Issue Josha Humberston 1 1036
Compilation error: Can't find module file 'mpi.mod' Cody Johnson 1 5271
Error running make on ubuntu 16.04 uuid_generate Jean-Luc Shaw 3 4166
Compiling on Red Hat Linux Enterprise Alejandra Ortiz 2 3770
Compilation Error for the WAQ Module Dirk Smit 0 1242
Trouble with make Philip Massie 2 3250
Array index out of bounds Bert Rubash 1 3398
Error - MessageHandling karunakar kintada 1 2330
Compile Errors in dffunctionals.F90 John Floyd 1 2666
MPI Linking error in Delwaq2 James Tomlinson 45 35919
`MPIR_ThreadInfo' error sorted with MPICH 3.x instead of MPICH2 Giordano Lipari 4 4634
Error Compiling Delft3D Linux "cannot have a deferred shape" Mariangel Garcia 0 2469
make error in and Dirk Smit 15 7875
Compiling error: could not read the symbols Igor Venancio 9 3100
make ds-install & undefined symbol: MPI_Init LI LI 24 13248
Compiling error: could not read the symbols Igor Venancio 9 3100
Compiling Delft3D in 32-bit Linux system LI LI 6 3313
Delft 3D installation on Linux LI LI 26 16321