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

FLOW-WAVE

FP
Francisco Thiago Parente, modified 7 Years ago.

FLOW-WAVE

Youngling Posts: 8 Join Date: 1/21/13 Recent Posts
Hi, when I starts flow-wave, I received this message:

"Simultaneous FLOW and WAVE computation
Starting simultaneous FLOW and WAVE computation ...
--------------------------------------------------------------------------------
- Delft3D
- Deltares, Delft3D-WAVE Version 3.04.01.2375, Mar 20 2013, 20:12:43
- Open source
-
--------------------------------------------------------------------------------
*** MESSAGE: Delft3D-WAVE runs online with Delft3D-FLOW
Domain 1 is using depth averaged flow velocity.
SWAN_INPUT: Meteofiles specified in group General used for domain 1
SWAN_INPUT: Meteofiles specified in group Domain used instead of meteo input from FLOW for domain 1
Done reading input
Waiting for initialisation from FLOW
Starting Delft3D-FLOW computation ...
d_hydro ABORT: XML parse error in configuration file

child process exited abnormally"

What's the problem? Thanks,
Adri Mourits, modified 7 Years ago.

RE: FLOW-WAVE

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

FLOW seems to have a problem when reading the XML input file. Some tips:
  • Does "...\examples\03_flow-wave" run? If not, something went wrong while compiling the source code.
  • To run your model: put it in a directory next to directory "03_flow-wave" and copy from "03_flow-wave" to your model: the run script, "config_d_hydro.xml" and "dioconfig.ini". Open "config_d_hydro.xml" in a text editor and set the correct mdf-file.
  • If this does not help: try first running FLOW without WAVE online (don't forget to remove the line "waveol= #yes#" from the mdf-file, or use the Delft3D-GUI to do that for you).
  • The communication between FLOW and WAVE is via files and is very sensitive for (temporary) files from previous trials. Please clean the run-directory as much as possible before starting a calculation.


Regards,

Adri
FP
Francisco Thiago Parente, modified 7 Years ago.

RE: FLOW-WAVE

Youngling Posts: 8 Join Date: 1/21/13 Recent Posts
Thanks!
FP
Francisco Thiago Parente, modified 7 Years ago.

RE: FLOW-WAVE

Youngling Posts: 8 Join Date: 1/21/13 Recent Posts
Hi, Adri!
Now I have other problem.
Look this message:

--------------------------------------------------------------------------------

- Delft3D
- Deltares, Delft3D-WAVE Version 3.04.01.2417, Apr 09 2013, 11:09:34
- Open source
-
--------------------------------------------------------------------------------

*** MESSAGE: Delft3D-WAVE runs online with Delft3D-FLOW
Domain 1 is using depth averaged flow velocity.
Done reading input
Waiting for initialisation from FLOW
*** MESSAGE: Connected to the following 1 FLOW domain(s):
tst
Initialising grids and grid mappings

Coordinate System: Spherical

forrtl: severe (157): Program Exception - access violation
Image PC Routine Line Source
wave.exe 002FED0E Unknown Unknown Unknown
wave.exe 002C2691 Unknown Unknown Unknown
wave.exe 0032BED7 Unknown Unknown Unknown
wave.exe 002ADA48 Unknown Unknown Unknown
wave.exe 00455D03 Unknown Unknown Unknown
wave.exe 004552DD Unknown Unknown Unknown
kernel32.dll 765133AA Unknown Unknown Unknown
ntdll.dll 77219EF2 Unknown Unknown Unknown
ntdll.dll 77219EC5 Unknown Unknown Unknown"


Do you help me?
Thanks.
Adri Mourits, modified 7 Years ago.

RE: FLOW-WAVE

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

Many problems can result in this error message. Debugging is needed to find out what goes wrong. Try to isolate the problem: Does FLOW run without WAVE, does WAVE run without FLOW, check how much memory is used per process (using the task manager).

If you want Deltares to solve this, you'll need a service package.

Regards,

Adri