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

3D mesh -combining Z and sigma layer

CB
Claire BERAUD, modified 3 Years ago.

3D mesh -combining Z and sigma layer

Youngling Posts: 5 Join Date: 1/5/16 Recent Posts
Hello Delft3D-users

I would like to combine Z-layers with sigma-layers in my 3D mesh. I have not find any recommendation or guidance to do so in the manual, and now wonder if it is do-able.

Could you please tell me if it is possible to combine both Z-layer and sigma-layer. And if it is possible, could you provide some more information on the required keyword, etc?

Thanks a lot!

Claire
Adri Mourits, modified 3 Years ago.

RE: 3D mesh -combining Z and sigma layer

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

No, that is not possible in the structured version of Delft3D. Some work has been done to make it possible in the Flexible Mesh version, but I'm not sure what the current status is. Please let me know if you want me to answer that question.

Regards,

Adri
CB
Claire BERAUD, modified 3 Years ago.

RE: 3D mesh -combining Z and sigma layer

Youngling Posts: 5 Join Date: 1/5/16 Recent Posts
Hi Adri,

And thanks so much for your reply.
I am still using the structured version, so do not bother finding if it is possible on the flexible mesh.

Regards,
Claire