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

Error running multi domain FLOW module on compiled source code on LINUX

Francesco Enrile, modified 4 Years ago.

Error running multi domain FLOW module on compiled source code on LINUX

Padawan Posts: 26 Join Date: 3/25/12 Recent Posts
Dear all,

I am running a multi domain model on delft3d Version and i get the following error:

forrtl: severe (62): syntax error in format, unit -5, file Internal Formatted Read
Image PC Routine Line Source 00007F9309BCB418 Unknown Unknown Unknown 00007F9306C3B297 asc_ 88 asc.f90 00007F9306A3185A update_nodal_fact 136 update_nodal_factors.f90 00007F93069ABE09 trisol_ 1264 trisol.f90 00007F93069A61E6 tricom_step_ 957 tricom_step.F90 00007F93069A8FF6 mod_trisim_mp_tri 384 trisim_mod.F90 00007F93069A9E5F trisim_ 101 trisim.F90 00007F9306977E59 Unknown Unknown Unknown 00007F9306969204 Unknown Unknown Unknown 00007F930BBE00DB Unknown Unknown Unknown 00007F930B910DDD Unknown Unknown Unknown

I would be grateful for any help.