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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** PLEASE TAG YOUR POST! **

 

 

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

 


Message Boards

RGFGRID

LT
Luciana Tessarolo, modified 7 Years ago.

RGFGRID

Youngling Posts: 15 Join Date: 5/9/13 Recent Posts
Hello,

I started to use DELFT3D recently and I have a doubt about the co-ordinate system. When I want to generate the grid with the Cartesian system, will I need to have my Land Boundary in the UTM system?

If I could use other systems (in meters), which would they be?

Thank you very much!!

Luciana
Renan Ribeiro, modified 7 Years ago.

RE: RGFGRID

Padawan Posts: 55 Join Date: 3/23/11 Recent Posts
Hi Luciana,

Yes, your land boundary needs to be in Cartesian system. For exemple, if you are using a Cartesian grid in UTM, datum WGS 84 zone 23S all others files (land boundary, samples, polygons) need to be at this same coordinate system and datum.

I always use UTM, but I think that you could use any other Cartesian coordinate.

Regards,
Renan
LT
Luciana Tessarolo, modified 7 Years ago.

RE: RGFGRID (Answer)

Youngling Posts: 15 Join Date: 5/9/13 Recent Posts
Hi Renan,

Thank you very much for your answer!!!

I will try to use other Cartesian system.

Regards,
Luciana