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dronecfd
openme.foam is empty when calculation completes
I've done everything described in Getting Started. Running dcRun --preview final --resolution low takes 9 hours to complete, and then opens paraview with no data.
openme.foam file size is 0 bytes
Can you help me figure out what is wrong with my setup?
Pistolero,
Can list the contents of the folder
openme.foam should be an empty file, it's only used to tell Paraview that the directory is an OpenFoam run.
-C
Can list the contents of the folder /DroneCFDSimulation/aoa_0.0?
Sure, here it is:
drwxr-sr-x 20 pistolero pistolero 4096 бер 18 02:39 .
drwxr-xr-x 3 pistolero pistolero 4096 бер 18 02:39 ..
drwxr-sr-x 2 pistolero pistolero 4096 бер 17 15:52 0
drwxr-sr-x 3 pistolero pistolero 4096 бер 18 02:39 1000
drwxr-sr-x 3 pistolero pistolero 4096 бер 18 02:39 1500
drwxr-sr-x 3 pistolero pistolero 4096 бер 18 02:39 2000
drwxr-sr-x 3 pistolero pistolero 4096 бер 18 02:39 2500
drwxr-sr-x 3 pistolero pistolero 4096 бер 18 02:39 3000
drwxr-sr-x 3 pistolero pistolero 4096 бер 18 02:39 500
-rwxr-xr-x 1 pistolero pistolero 335 бер 17 15:52 Allclean
-rwxr-xr-x 1 pistolero pistolero 856 бер 17 15:52 Allrun
-rw-r--r-- 1 pistolero pistolero 0 бер 17 15:55 aoa_0.0.foam
drwxr-sr-x 5 pistolero pistolero 4096 бер 17 15:55 constant
-rw-r--r-- 1 pistolero pistolero 0 бер 17 15:52 openme.foam
drwxr-sr-x 4 pistolero pistolero 4096 бер 17 16:12 postProcessing
-rw-r--r-- 1 pistolero pistolero 2850 бер 18 02:39 PyFoamHistory
drwxr-sr-x 2 pistolero pistolero 4096 бер 17 15:55 PyFoamRunner.blockMesh.analyzed
-rw-r--r-- 1 pistolero pistolero 2134 бер 17 15:55 PyFoamRunner.blockMesh.logfile
drwxr-sr-x 2 pistolero pistolero 4096 бер 17 16:11 PyFoamRunner.decomposePar.analyzed
-rw-r--r-- 1 pistolero pistolero 5131 бер 17 16:11 PyFoamRunner.decomposePar.logfile
drwxr-sr-x 2 pistolero pistolero 4096 бер 17 16:12 PyFoamRunner.potentialFoam.analyzed
-rw-r--r-- 1 pistolero pistolero 2758 бер 17 16:12 PyFoamRunner.potentialFoam.logfile
drwxr-sr-x 2 pistolero pistolero 4096 бер 18 02:39 PyFoamRunner.reconstructPar.analyzed
-rw-r--r-- 1 pistolero pistolero 2671 бер 18 02:39 PyFoamRunner.reconstructPar.logfile
drwxr-sr-x 2 pistolero pistolero 4096 бер 18 02:36 PyFoamRunner.reconstructParMesh.analyzed
-rw-r--r-- 1 pistolero pistolero 6572 бер 18 02:36 PyFoamRunner.reconstructParMesh.logfile
drwxr-sr-x 2 pistolero pistolero 4096 бер 18 02:35 PyFoamRunner.simpleFoam.analyzed
-rw-r--r-- 1 pistolero pistolero 3794776 бер 18 02:35 PyFoamRunner.simpleFoam.logfile
drwxr-sr-x 2 pistolero pistolero 4096 бер 17 16:09 PyFoamRunner.snappyHexMesh.analyzed
-rw-r--r-- 1 pistolero pistolero 220273 бер 17 16:09 PyFoamRunner.snappyHexMesh.logfile
drwxr-sr-x 2 pistolero pistolero 4096 бер 17 15:55 PyFoamRunner.surfaceFeatureExtract.analyzed
-rw-r--r-- 1 pistolero pistolero 2406 бер 17 15:55 PyFoamRunner.surfaceFeatureExtract.logfile
-rw-r--r-- 1 pistolero pistolero 27 бер 18 02:36 PyFoamServer.info
-rw-r--r-- 1 pistolero pistolero 7 бер 18 02:39 PyFoamState.CurrentTime
-rw-r--r-- 1 pistolero pistolero 25 бер 18 02:39 PyFoamState.LastOutputSeen
-rw-r--r-- 1 pistolero pistolero 84 бер 18 02:36 PyFoamState.LogDir
-rw-r--r-- 1 pistolero pistolero 25 бер 18 02:36 PyFoamState.StartedAt
-rw-r--r-- 1 pistolero pistolero 9 бер 18 02:39 PyFoamState.TheState
drwxr-sr-x 2 pistolero pistolero 4096 бер 17 15:52 system
openme.foam should be an empty file, it's only used to tell Paraview that the directory is an OpenFoam run.
Ok, it is nice to know. But I'm still wondering why I can't see anything in the paraview.
I'm new to OpenFOAM and paraview. Do I need to do something extra in paraview in order to see the data after I open openme.foam file?
Ok, when I'm clicking 'Apply' on the left panel paraview begins to load something, but then fails with
ERROR: In /home/openfoam/OpenFOAM/ParaView-4.1.0/VTK/IO/Geometry/vtkOpenFOAMReader.cxx, line 6467 vtkOpenFOAMReaderPrivate (0x32c42c0): Error reading line 21 of /home/serg/cfd/DroneCFDSimulation/aoa_0.0/0/omega: Expected number, string or (, found turbulentOmega
and here is content of my 0/omega
/*--------------------------------------------------------------------------------*\
_______ .______ ______ .__ __. _______ ______ _______ _______
| \ | _ \ / __ \ | \ | | | ____| / || ____|| \
| .--. || |_) | | | | | | \| | | |__ | ,----'| |__ | .--. |
| | | || / | | | | | . ` | | __| | | | __| | | | |
| '--' || |\ \----.| `--' | | |\ | | |____ | `----.| | | '--' |
|_______/ | _| `._____| \______/ |__| \__| |_______| \______||__| |_______/
\*--------------------------------------------------------------------------------*/
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
object omega;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 0 -1 0 0 0 0];
turbulentOmega 1.78;
internalField uniform $turbulentOmega;
boundaryField
{
inlet
{
type fixedValue;
value $internalField;
}
outlet
{
type inletOutlet;
inletValue $internalField;
value $internalField;
}
walls
{
type omegaWallFunction;
value $internalField;
}
Aircraft
{
type omegaWallFunction;
value $internalField;
}
}
What is wrong?
I'll look into it. You should still have pressure and velocity data to look at. Can you confirm that data is there? Do you need Omega specifically?
Thanks. Yes, I got the data.
BTW, what is the unit for a lift and drag in RunSummary.xlsx?
I got lift about 5.1N for benchmarkAircraft.stl and default wind speed of 15 (m/s?)
It looks that it should be bigger for a given wind speed and plane size.
That sounds about right for that foil at AOA=0 degrees. If it were a symmetric foil, I would expect 0 N. That specific airframe was designed to fly at ~1kg, so 5.1 N isn't far off from lift.
Ok. Thanks a lot.
I want to say that I really appreciate your work on DroneCFD.
OpenFOAM is inherently complicated but your software makes process of wind tunnel testing really simple and streamlined.