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

Threads with tag tide .

Thread Started By Replies Views Last Post  
Delft Dashboard tidemodels Lesley Davidson 4 962
PROBLEM: water level results with double peaks. Results aren't smooth Esther Espinoza 4 2603
Tidal phase not matching predicted Nick DiCosmo 1 1061
Water Level Mario Ruedas Racines 2 4661
Tide Range Mario Ruedas Racines 1 1522
DELFT3D-TIDE HILOW question Niño Jhim Andrew Dela Luna 1 1948
Waves distorting harmonic tides, help? Curtis Swanepoel 4 2392
Problem access to the OpenDAP servers with Dashboard Angela T P 1 2030
Water level modelling is not accurate Marisela Des 0 1018
Progress Monitor Window does not show Marjorie Turiano 2 4275
Tidal water level variation inside an estuary Saeed Shaeri 3 4613
Tidal forces implementaions Diego Uribe Suárez 2 2764
Tide level in SWAN Jeff Hansen 0 2036
Problem nesting grids on a tidal model Augusto Freitas 6 7166
Simulation results are not smooth / double peaks Anas Rahman 3 3943
Executing .bat file Delft Dashboard Augusto Freitas 3 6246
Help with Tidal Forces in Delft3D-Flow Rohit Kulkarni 0 2745
The difference between them was the vertical coordinate, one sigma and the LUIS HENRIQUE SILVA 1 2320
TIDE analysis Phil Shepperd 6 6071
TIDE analysis Phil Shepperd 6 6071