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

external atmospheric files in parallel does not work

VY
veli yumruktepe, modified 8 Years ago.

external atmospheric files in parallel does not work

Padawan Posts: 42 Join Date: 2/7/12 Recent Posts
Hi,

I tried to run the model in parallel with the external wind and air pressure options on, such as:

Filwu = some file
Filwv = some file
Filwp = some file

But the program gave errors saying FLOW EXITED ABNORMALLY

Nothing was written in diag files, but the same configuration worked in single processor run.

The question is, is it not yet supported in parallel run to have sepearate atmospheric files??

Thanks
Adri Mourits, modified 8 Years ago.

RE: external atmospheric files in parallel does not work

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

It should work. But I did a small test and ran into some problems. I solved them in the trunk in revision 1320. Can you try running your model with this (not yet completely tested!) version?

Regards,

Adri
VY
veli yumruktepe, modified 8 Years ago.

RE: external atmospheric files in parallel does not work

Padawan Posts: 42 Join Date: 2/7/12 Recent Posts
Thanks a lot Adri

Indeed at the time I was using the tagged version, now I compiled the trunk version and it seems to work well.
I was wondering if there were documentation on the format of external atmospheric files in detail. The flow manual mention them briefly.
For example the temperature, humidity etc examples on a seperate grid files are not explained.

Thanks again
Veli
Adri Mourits, modified 8 Years ago.

RE: external atmospheric files in parallel does not work

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

Looking at the manual, all the information seems to be there. Can you tell more precisely what you are missing?

It may help to have a look at the attached input of one of the testcases in our testbench.

Regards,

Adri