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

WAVE Obstacles

SH
Shawn Harrison, modified 7 Years ago.

WAVE Obstacles

Padawan Posts: 70 Join Date: 6/25/12 Recent Posts
Just a question about defining obstacles in WAVE...

The manual says:
... h is the crest level of the dam above the reference level (same as reference level of the bottom)


This is slightly confusing to me.. is the height of the obstacle relative to the bottom at that location or relative to the frame of reference (SWL), the same as depths of the bottom are?


Thanks for the clarification,
Shawn
SH
Shawn Harrison, modified 7 Years ago.

RE: WAVE Obstacles (Answer)

Padawan Posts: 70 Join Date: 6/25/12 Recent Posts
FYI,
After a bit of experimentation with the formula and model, I determined that the obstacle (dam) crest height, h refers to the height above msl. So, for example a dam with h = 2m will translate to a structure that has a crest height 2m above msl. If you want a structure that is 2m higher than the seabed, you must determine the height of the water column at that location and use the difference. E.g. 2m high dam on the seabed in 10m of water is, h = (2m - 10m) = -8m crest height.

Cheers,
Shawn