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

Vertical Drains

KT
Kazuhiro Tsubono, modified 6 Years ago.

Vertical Drains

Youngling Posts: 11 Join Date: 7/5/13 Recent Posts
Hi all,

I'm wondering if there is any way to model vertical drains.
I'd like to discharge water vertically, but it seems there is no such function in discharge in Delft3D-FLOW.
Please tell me if there is any way to do that.

Thank you in advance.

Best Regards,
Kazuhiro
Qinghua Ye, modified 6 Years ago.

RE: Vertical Drains

Jedi Council Member Posts: 612 Join Date: 3/2/11 Recent Posts
Hi Kazuhiro,

I don't understand what you mean by discharge water vertically. You probably mean to discharge water from certain depth to another depth or to outside. That you might use the discharge point at a certain (MNK) position.

Regards,

Qinghua
KT
Kazuhiro Tsubono, modified 6 Years ago.

RE: Vertical Drains

Youngling Posts: 11 Join Date: 7/5/13 Recent Posts
Hi Qinghua,

Thank you for replying.
What I meant with discharge vertically is that discharging water either upward or downward direction instead of horizontal direction.
I was trying to model water flow downward from the water surface at a certain flow rate(velocity) and see how deep the flow reaches.
When you just point a discharge at a certain (MNK) position, does this flow have vertical direction?

Thank you in advance,

Best Regards,
Tsubono
Qinghua Ye, modified 6 Years ago.

RE: Vertical Drains (Answer)

Jedi Council Member Posts: 612 Join Date: 3/2/11 Recent Posts
Hi Tsubono,

In Delft3D, there is an operation option, that you can discharge from one cell at certail layer to another cell at certain layer. We used it for pumping water etc. I still don't know what you mean with discharge. You probably mean vertical advection? Or you really have a pumping station, which pump the water from bottom to top?

For vertical advection, if you have a 3D model, you would have the vertical velocity and you might be able to get the vertical discharge by postpocessing.

For a real pumping process, you might add a new operation, set the from-cell (MNK) and the to-cell (MNK), then certain amount of water will be transfered.

Hope this will help a bit!

Regards,

Qinghua