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

create_config_xml.tcl missing

Romy Pijnenburg-Verkooijen, modified 5 Years ago.

create_config_xml.tcl missing

Youngling Posts: 1 Join Date: 11/18/14 Recent Posts
I am trying to run a simulation in FLOW. It gives the error: couldn't reade file C:/Deltares/delft3d/win32/menu/bin/create_config_xml.tlc. FAQ saysemoticonn Windows, the message 'couldn't read file ".../create_config_xmlt.tcl": no such file or directory' appears

The file "create_config_xml.tcl" is inside the source code. If you compile the (release version of the) source code, a directory named "<mysourcecodelocation>\bin\win32" will be created, containing also the file "<mysourcecodelocation>\bin\win32\menu\bin\create_config_xml.tcl". If you want to use the Deflt3D-GUI (version 4.01.00 or higher), you have to copy the full contents of "<mysourcecodelocation>\bin\win32" on top of the Delft3D installation directory (default directory "c:\Program Files (x86)\Deltares\Delft3D <versionnumber>\win32"), including the tcl file in the correct subdirectory

there is however no mysourcecodelocation or a create_config_xml.tcl file on my computer?
Does anyone know how to solve this?
Jessica Chassereau, modified 5 Years ago.

RE: create_config_xml.tcl missing

Youngling Posts: 15 Join Date: 4/21/11 Recent Posts
Hi, I am having the exact same problem...were you ever able to resolve this issue? If so, could you please tell me how to fix this?

Xiaoyong Lyu, modified 4 Years ago.

RE: create_config_xml.tcl missing

Youngling Posts: 3 Join Date: 9/2/15 Recent Posts
The same to you.

When executing Flow Simulation, There is an error window showing no a create_config_xml.tcl file on my computer?

Waiting for some answers.

Thanks very much!