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! 

 

=======================================================
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.

=======================================================

** PLEASE TAG YOUR POST! **

 

 

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

 


Message Boards

Qs: spatially varying critical shear stress using *tce

KL
K Liu, modified 4 Years ago.

Qs: spatially varying critical shear stress using *tce

Padawan Posts: 48 Join Date: 10/23/13 Recent Posts
Deal all,

I am trying to set a spatially varying critical shear stress for cohesive sediment erosion by using the *.tce file. My first test was to set a constant critical value in the *.tce (generated from QUICKIN, then rename it as *tce). However, the result doesn't match the one with a constant value for parameter "TcrEro". That means, the *.tce file doesn't work with my model?? The flow2d3d version is 6.01.13.4580, and it runs on linux.

Does anybody have experience using the *tce and could give me some suggestions?

Thanks in advance for your help!

Regards,
Ke
MK
Manuela König, modified 2 Years ago.

RE: Qs: spatially varying critical shear stress using *tce

Youngling Posts: 4 Join Date: 6/12/17 Recent Posts
Hej Ke,

did you solve the problem? Did you gain new experiences?

I do have similare problems.

Regards Manuela
Adri Mourits, modified 2 Years ago.

RE: Qs: spatially varying critical shear stress using *tce

Yoda Posts: 1224 Join Date: 1/3/11 Recent Posts
Hi Manuela and Ke,

A common error is that the name of the tce file is interpreted as a constant value. Be sure that hash/pound/#-symbols are arround the name of the file in the sed-input file:

TcrEro = #f34_mud.tce#

Regards,

Adri
KL
K Liu, modified 2 Years ago.

RE: Qs: spatially varying critical shear stress using *tce

Padawan Posts: 48 Join Date: 10/23/13 Recent Posts
Hi, Manuela,

Sorry about the late reply. I haven't been here for a while.

No, I could not make it work when I was doing it. But you may try Adri's suggestion here and hope it helps.

Best regards,

Ke