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

DELWAQ coupled with z-layer Delft3D FLOW model?

U
Zhanxian Wang, modified 2 Years ago.

DELWAQ coupled with z-layer Delft3D FLOW model?

Hello, all,

I am curious to know that if anyone ever has successfully used DELWAQ coupled with Delft3D z-layer FLOW model? If so, I need some serious help on how to make the model work? Please see my recent post about my struggle with the z-layer DELWAQ model.

Thanks in advance!
Jonathan
Ben Williams, modified 2 Years ago.

RE: DELWAQ coupled with z-layer Delft3D FLOW model?

Jedi Knight Posts: 114 Join Date: 3/23/11 Recent Posts
Hi Johnathan,

Have you thought about purchasing an appropriate level of maintenance and support package?

Cheers,

Ben
U
Zhanxian Wang, modified 2 Years ago.

RE: DELWAQ coupled with z-layer Delft3D FLOW model?

Hi, Ben,

Our company already has purchased a maintenance and support package. Is there other ways to get technical support from Deltares in addition to this forum?

Thanks,
Jonathan
AM
Arjen Markus, modified 2 Years ago.

RE: DELWAQ coupled with z-layer Delft3D FLOW model?

Jedi Knight Posts: 223 Join Date: 1/26/11 Recent Posts
Please be patient - I said in the other thread that z-layers and domain decomposition are an unusual set-up, but I was wrong. In fact a year ago I was looking into a very similar model set-up, but the problem there was not this numbering of boundary cells, instead it was about the interpretation of the water quality processes and the subsequent results. So, yes, DELWAQ does work with z-layers. There is, however, something going on which I have not got to the bottom yet.
U
Zhanxian Wang, modified 2 Years ago.

RE: DELWAQ coupled with z-layer Delft3D FLOW model?

Arjen,

I know you have been working so hard to help me to resolve my issue, Thanks.

I just want to check if anyone has already worked with z-layer DELWAQ successfully and hopefully they can share their experience.

Jonathan
AM
Arjen Markus, modified 2 Years ago.

RE: DELWAQ coupled with z-layer Delft3D FLOW model?

Jedi Knight Posts: 223 Join Date: 1/26/11 Recent Posts
emoticon Understood.

Note: you can contact delft3d.support@deltares.nl for such official help requests. They will make sure that the question is handled by somebody here - and haunt them if they are not taking action ;)
U
Zhanxian Wang, modified 2 Years ago.

RE: DELWAQ coupled with z-layer Delft3D FLOW model? (Answer)

Issue is resolved by Arjen by updating ddcouple.

Thank you very much, Arjen!

Jonathan
AM
Arjen Markus, modified 2 Years ago.

RE: DELWAQ coupled with z-layer Delft3D FLOW model?

Jedi Knight Posts: 223 Join Date: 1/26/11 Recent Posts
Glad to hear that. The problem is that DELWAQ assumes a particular numbering structure in case of a t3D application and that was upset by a procedure to filter out those exchanges that would never contribute to the transport (exchanges involving inactive segments).