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

without in Ubuntu

Atenas Scarlett Martinez Morales, modified 2 Years ago.

without in Ubuntu

Youngling Posts: 1 Join Date: 9/25/18 Recent Posts

Hello everyone, I am a new user of delft3d, I'm trying installing this software, but I'm having problems for start the menu.

I'm working in Ubuntu 16.04 LTS, for that reason I followed the build_ubuntu.16.04LT.readme for install the libraries, and downloaded and install delft3d.

I have reached the point of running the examples, and apparently everything is in order:


Running testcase 01_standard ...
Running testcase 01_standard parallel ...
Running testcase 02_domaindecomposition ...
Running testcase 03_flow-wave ...
Running testcase 03_flow-wave parallel ...
Running testcase 04_fluidmud ...
Running testcase 05_mormerge ...
Running testcase 06_delwaq ...
Running testcase 07_wave ...
Running testcase 08_part-tracer ...
Running testcase 09_part-oil ...
Running testcase 10_delwaq-part-tracer ...
Running testcase 11_standard_netcdf ...

My problem is when I trying to use the menu.In this instruction:

Linux: "Dot" the profile and start the menu, using the following two commands:
. /myDelft3D/etc/profile.d/

I have not any file... for that reason I can't run the menu, and I can't get the graphic interface (the window of Delft3d).

Could someone help me?
I came to think that maybe the software was not completely downloaded (how much should it weigh? How many files does it have?)

Or do I have to follow one more step?

Thanks in advance for any help.


Qinghua Ye, modified 2 Years ago.

RE: without in Ubuntu

Jedi Council Member Posts: 610 Join Date: 3/2/11 Recent Posts

Hi Atenas,

Very good that you reached the examples step.  You may also check the results of those examples to see if the results are reasonable.  For GUI on Linux platform, the open source version is not ready yet, since most of us don't need the GUI to run the model.   Thus you are right.  It might not work.

Best Regards,