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

wave induced current

Soroush Safaei, modified 7 Years ago.

wave induced current

Youngling Posts: 21 Join Date: 3/24/13 Recent Posts
Hello everyone

The place my model located in, does not have a great amount of currents....the most important thing in that area is wave induced current.
I want to know if it's possible not to use any magnitude for current in boundary condition and simulate the model with the wave outputs?
I simulate the model like this and it didn't contain any error. but I want to make sure....
thanks a lot

Fernando Barreto, modified 7 Years ago.

RE: wave induced current

Padawan Posts: 74 Join Date: 6/21/12 Recent Posts
The ideal would be you make a large domain model and force it with hydrodynamic data from hycom and tpxo, for example, and then nest your refined model to get information about current and tide. Use wave model only in your refined model.