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

RE: offline wave computation won't start

ME
Menno Eelkema, modified 6 Years ago.

offline wave computation won't start

Youngling Posts: 6 Join Date: 6/24/11 Recent Posts
Dear Support,

I'm trying to start a wave computation with input from a flow-computation which I've already executed, so it's an offline coupling. Both the mdf and mdw have the same name. However, the delft3d-prompt gives the following error:

*** ERROR: Delftio initialization WAVE side failed
Is file 'dioconfig.ini' present?

The dio-wave-error file gives the following:

DioError 101: Could not connect to stream FLOW2WAVE_DATA.his
DioError 203: Could not open FLOW2WAVE_DATA for reading

I've already copied the dioconfig.ini from the w32/wave/default-folder into the working-directory, but this has no effect. I've also tried this with the dioconfig.ini from svn.oss.deltares.nl, but to no effect.

What can I do?

Menno
Arjen Luijendijk, modified 6 Years ago.

RE: offline wave computation won't start

Padawan Posts: 38 Join Date: 2/22/11 Recent Posts
Hi Menno,
Does it run when you do not use information from FLOW?
If so, are you 'reference dates' in both FLOW (so in the com-file) and WAVE identical?

Cheers, Arjen
ME
Menno Eelkema, modified 6 Years ago.

RE: offline wave computation won't start

Youngling Posts: 6 Join Date: 6/24/11 Recent Posts
Hi Arjen,

When WAVE is run in standalone-mode, so with manual input in the 'Time Frame' window, it runs without problems. In both cases, the same reference date is used.

Menno
ME
Menno Eelkema, modified 6 Years ago.

RE: offline wave computation won't start

Youngling Posts: 6 Join Date: 6/24/11 Recent Posts
FYI: an online FLOW-WAVE computation has no problem starting. It's purely the offline WAVE simulation with input from a com-file that causes trouble.
GJ
glejin johnson, modified 5 Years ago.

RE: offline wave computation won't start

Youngling Posts: 11 Join Date: 6/9/13 Recent Posts
Hi Menno,

I am also facing the same problem when running a coupled flow-wave simulation. Could you able to solve this error. I was running flow-wave coupled simulation, but now it shows this error" *** ERROR: Delftio initialization WAVE side failed Is file 'dioconfig.ini' present? " but this is present in the folder and dio-wave-errors shows" DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion.

Looking for anyone's help to solve this problem

Regards,

Glejin
RM
Ruairi MacIver, modified 5 Years ago.

RE: offline wave computation won't start (Answer)

Padawan Posts: 45 Join Date: 5/1/13 Recent Posts
Hi Glejin

I have observed a similar sequence of error messages (although I've never managed to establish the cause).

The approach I adopt is to deal with this is
1) ensure that all output files are deleted from the simulation folder
2) first delete the dioconfig.ini file then copy a fresh version of it to the simulation folder

If the error messages remain I create a new simulation folder and repopulate it with the input files and dioconfig.ini.
So far this approach has cleared the issue.

Ruairi
RW
Ryan Waldron, modified 3 Years ago.

RE: offline wave computation won't start

Youngling Posts: 16 Join Date: 8/5/14 Recent Posts
Ruairi MacIver:
Hi Glejin

I have observed a similar sequence of error messages (although I've never managed to establish the cause).

The approach I adopt is to deal with this is
1) ensure that all output files are deleted from the simulation folder
2) first delete the dioconfig.ini file then copy a fresh version of it to the simulation folder

If the error messages remain I create a new simulation folder and repopulate it with the input files and dioconfig.ini.
So far this approach has cleared the issue.

Ruairi


I've tried every different permutation of this, and still have the problem. Does anyone have a solution to this?
MT
Marjorie Turiano, modified 3 Years ago.

RE: offline wave computation won't start

Youngling Posts: 19 Join Date: 1/22/16 Recent Posts
Hi.

Did you edit the mdw to write the timesteps to solve? It should look something like this:

[WaveFileInformation]
FileVersion = 02.00
[General]
ProjectName = Meranti
ProjectNr = 001
Description = 2016 11 14
Description = Wave only
OnlyInputVerify = false
SimMode = stationary
FlowWaterLevel = 1
FlowVelocity = 1
FlowVelocityType = depth-averaged
DirConvention = nautical
ReferenceDate = 2016-09-10
MeteoFile = Meranti-JMA-micro.spw
[TimePoint]
Time = 4.6800000e+003
[TimePoint]
Time = 4.6900000e+003
[TimePoint]
Time = 4.7000000e+003
[TimePoint]
Time = 4.7100000e+003
[TimePoint]
Time = 4.7200000e+003
[TimePoint]
Time = 4.7300000e+003
[TimePoint]
Time = 4.7400000e+003
[TimePoint]
Time = 4.7500000e+003
[TimePoint]
Time = 4.7600000e+003
[TimePoint]
Time = 4.7700000e+003

...

[TimePoint]
Time = 5.7600000e+003
[Constants]
WaterLevelCorrection = 0.0000000e+000
Gravity = 9.8100004e+000
WaterDensity = 1.0300000e+003
NorthDir = 9.0000000e+001
MinimumDepth = 5.0000001e-002

...




And to reiterate the importance of what other responders already said, make sure that you delete the comm files first before re-running.

Hope this helps.


Sincerely,
Marjorie
RW
Ryan Waldron, modified 3 Years ago.

RE: offline wave computation won't start

Youngling Posts: 16 Join Date: 8/5/14 Recent Posts
I'm fighting against this problem as well. Has anyone solved the problem?
JL
Jessica Lovering, modified 3 Years ago.

RE: offline wave computation won't start

Youngling Posts: 1 Join Date: 1/9/17 Recent Posts
I had a similar issue if I was running a batch of simulations. I discovered that if my computer had gone into sleep mode then the communication between the flow and wave modules had some sort of glitch and I would get this error. When I changed my computer settings I stopped having this issue.
HA
hind azidane, modified 3 Years ago.

error running computational programm

Youngling Posts: 4 Join Date: 2/9/17 Recent Posts
Dear all

I am starting to running a wave-flow computation and i have this error
--------------------------------------------------------------------------------

Command: run Delft3D-FLOW
Simultaneous FLOW and WAVE computation
Starting simultaneous FLOW and WAVE computation ...
--------------------------------------------------------------------------------
- Delft3D
- Deltares, Delft3D-WAVE Version 3.04.02.4013, Aug 19 2014, 10:43:49
- Open source
-
--------------------------------------------------------------------------------
*** MESSAGE: Delft3D-WAVE runs online with Delft3D-FLOW
SWAN_INPUT: [Processes] WaveForces is set to "dissipation 3d"
To switch on radiation stresses: "WaveForces = radiation stresses <2013"
Done reading input
Waiting for initialisation from FLOW
Starting Delft3D-FLOW computation ...
--------------------------------------------------------------------------------
Deltares, FLOW2D3D Version 6.01.07.4013, Aug 19 2014, 10:56:15
flow2d3d.dll entry Flow2D3D::Run
--------------------------------------------------------------------------------

Part I - Initialisation Time Dep. Data module...
runid : hydodynamic
Part II - Creating intermediate files...
Part III - Initialisation of the Execution module...
Part IV - Reading complete MD-file...
Part V - Initialisation & checking input...
Part VI - Initialisation & checking second part...
Part VII - Initialisation output...
*** ERROR: Delftio initialization WAVE side failed
Is file 'dioconfig.ini' present?

With the Dio Error are:

DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt
DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion
DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt
DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion
DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt
DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion
DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt
DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion
DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt
DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion
DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt
DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion
DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt
DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion
DioError 101: Could not connect to stream FLOW2WAVE_DATA.txt
DioError 903: Could not open FLOW2WAVE_DATA.txt for deletion

i would appreciate any answer.
Thank you in advance!