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

Clarification about D-WAQ compiling requirements

Shawn Harrison, modified 7 Years ago.

Clarification about D-WAQ compiling requirements

Padawan Posts: 70 Join Date: 6/25/12 Recent Posts
I wonder if someone would clarify my confusion about compiling the oss D-WAQ..
Is it only available on Windows or can it also be compiled in linux? It looks like the GUI only works in Windows, but how about the module?

Thank you,
Adri Mourits, modified 7 Years ago.

RE: Clarification about D-WAQ compiling requirements (Answer)

Yoda Posts: 1221 Join Date: 1/3/11 Recent Posts
Hi Shawn,

The open source Delft3D "kernels" (WAQ, FLOW, WAVE) compile and run both on Windows and Linux. On both platforms, every tagged version should compile and all 6 examples should run, using all three kernels.

At least once a year, we try to produce a "setup" (for Windows) and an "rpm" (for Linux), containing pre-compiled GUIs, Delft3D-MENU and some tools.

Looking at your questions:
Yes it compiles and runs also on Linux.
I assume that with "GUI" you mean the Windows setup Delft3D 4.01.00.rc.03. This indeed only runs on Windows. There is no Linux Delft3D-GUI yet available that can be used for WAQ. We are working hard to get a Windows setup Delft3D 4.01.00 that can be released. A Linux version is the next thing to do.