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! 

 

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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: 
/web/delft3dfm/forum
Post your questions, issues, suggestions, difficulties related to our Delft3D Flexible Mesh Suite on the new forum.

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Sub groups
D-Flow Flexible Mesh
DELWAQ
Cohesive sediments & muddy systems

 

Message Boards

Getting netCDF as an output of Delft3D-FLOW

CY
Changeun Yang, modified 12 Months ago.

Getting netCDF as an output of Delft3D-FLOW

Youngling Posts: 2 Join Date: 1/13/20 Recent Posts
Hello,I'm doing postprocess Delft3D output file with Python.
I first tried to use nefis-python in Open Earth Tools, but I couldn't make it. (There were endless errors disturbing me)So now I'm trying to get netCDF file directly from Delft3D.
I put a keyword "FlNcdf = #map his dro fou#" in the mdf file, but what I got is an error :../../bin/lnx/flow2d3d/bin/d_hydro.exe: symbol lookup error:

../../bin/lnx/flow2d3d/bin/libflow2d3d.so: undefined symbol: netcdf_mp_nf90_create

The version of Delft3D is 6.02 and that of netCDF-fortran is 4.1.3.I know that the version of netCDF-fortran needs to be higher but is it the reason of that error?Because I don't want to install the newer version of netCDF if possible, since I'm so bad at GNU make. I've tried this for several days already.
Thanks in advance
netcdf compilation error in linux
CY
Changeun Yang, modified 12 Months ago.

RE: Getting netCDF as an output of Delft3D

Youngling Posts: 2 Join Date: 1/13/20 Recent Posts
Ah, and one more thing, is there any options to get outputs as both NetCDF and Nefis file?
If I add the keyword 'FlNcdf', then Delft3D-flow will generate only NetCDF file, right? But what if I also want Nefis file, besides NetCDF?
Thanks!