Forum: OpenFOAM Running, Solving & CFD
October 14, 2014, 10:35
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Replies: 298
Views: 70,983
Hi,
the following computation was done with...
Hi,
the following computation was done with ICEMCFD Hexa meshes (OpenFOAM 2.2.x).
https://www.youtube.com/watch?v=HJ2sRORTAsY&list=UU3rbNp9HIcn5Tt-X_CqxshQ
Take care at the interface between...
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Forum: OpenFOAM Running, Solving & CFD
September 21, 2012, 02:46
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Replies: 298
Views: 70,983
Hi,
yes I use adjustable time stepping.
As...
Hi,
yes I use adjustable time stepping.
As you can see my maxCo = 2 and my resulting meanCo is around 0.0012.
I can only play my the maxCo number.
So you suggest to increase maxCo till I get...
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Forum: OpenFOAM Running, Solving & CFD
September 21, 2012, 02:17
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Replies: 298
Views: 70,983
Hi,
checkMesh gives me:
*Number of...
Hi,
checkMesh gives me:
*Number of severely non-orthogonal faces: 182.
Non-orthogonality check OK.
<<Writing 182 non-orthogonal faces to set nonOrthoFaces
So you suggest to set...
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Forum: OpenFOAM Running, Solving & CFD
September 20, 2012, 07:59
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Replies: 298
Views: 70,983
Hi OF-users,
which maxCo are you reaching...
Hi OF-users,
which maxCo are you reaching for pimpleDyMFoam computation with AMI patches ?
What manner do you use to increase maxCo ? Manually or a more sophisticated method ?
Regards,...
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Forum: OpenFOAM Running, Solving & CFD
July 3, 2012, 03:10
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Replies: 298
Views: 70,983
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Forum: OpenFOAM Running, Solving & CFD
June 28, 2012, 05:25
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Replies: 298
Views: 70,983
Hi,
I have some problem to converge my...
Hi,
I have some problem to converge my propeller case using AMI.
Can someone look at my fvSolution and fvScemes files and give me some advice about how to improve the convergence (and for...
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Forum: OpenFOAM Running, Solving & CFD
May 31, 2012, 06:47
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Replies: 298
Views: 70,983
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Forum: OpenFOAM Running, Solving & CFD
May 31, 2012, 04:25
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Replies: 298
Views: 70,983
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Forum: OpenFOAM Running, Solving & CFD
May 24, 2012, 02:19
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Replies: 298
Views: 70,983
Hi Attesz,
Now for me it works but only when...
Hi Attesz,
Now for me it works but only when I generate the grid with ICEMCFD Hexa.
When I generate the mesh with snappyHexMesh (like propeller tutorial) it crashes. Same error as you. Strange...
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Forum: OpenFOAM Running, Solving & CFD
May 3, 2012, 02:12
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Replies: 298
Views: 70,983
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Forum: OpenFOAM Running, Solving & CFD
May 2, 2012, 06:07
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Replies: 298
Views: 70,983
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Forum: OpenFOAM Running, Solving & CFD
April 30, 2012, 02:25
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Replies: 298
Views: 70,983
Hi he,
The grid doesn't seem to be generated...
Hi he,
The grid doesn't seem to be generated using ICEM Hexa !
You will have problems at the interface between the rotating and the static domains.
Your interface has to be smooth (circle)....
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Forum: OpenFOAM Running, Solving & CFD
April 27, 2012, 07:16
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Replies: 298
Views: 70,983
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Forum: OpenFOAM Running, Solving & CFD
April 26, 2012, 05:18
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Replies: 298
Views: 70,983
(1) Open your constant/polyMesh/boundary file. ...
(1) Open your constant/polyMesh/boundary file.
(2) Compute nFaces + startFace of your last boundary.
(3) Open your changeDictionaryDict file.
(4) startFace (for AMI1 and AMI2) = result computed in...
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Forum: OpenFOAM Running, Solving & CFD
April 26, 2012, 02:08
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Replies: 298
Views: 70,983
Hi,
With ICEM Hexa I have ONLY one fluid...
Hi,
With ICEM Hexa I have ONLY one fluid part. Export in V6 fluent format. Then use the fluent3DMeshToFoam command to convert the mesh.
Try to follow exactly the propeller tutorial. Keep the...
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Forum: OpenFOAM Running, Solving & CFD
April 25, 2012, 03:52
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Replies: 298
Views: 70,983
Hi CFDkid,
I have reproduced exactly the...
Hi CFDkid,
I have reproduced exactly the propeller tutorial:
~/OpenFOAM-2.1.x/tutorials/incompressible/pimpleDyMFoam/propeller/
Using blockMesh and snappyHexMesh my case blows.
Using ICEM...
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Forum: OpenFOAM Running, Solving & CFD
April 25, 2012, 03:44
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Replies: 298
Views: 70,983
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Forum: OpenFOAM Running, Solving & CFD
April 13, 2012, 07:04
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Replies: 298
Views: 70,983
Hi,
happy to hear that users are able to run...
Hi,
happy to hear that users are able to run case using grid generated by sMH.
Mine is also running for some time then it crashes suddenly (despite nice convergence of residuals and forces).
...
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Forum: OpenFOAM Running, Solving & CFD
April 12, 2012, 02:53
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Replies: 298
Views: 70,983
Hi,
I have tried 2 ways:
1. Background...
Hi,
I have tried 2 ways:
1. Background mesh with ICEM and sHM for the propeller. The case runs well at the beginning and then crashes suddently.
2. Whole mesh with ICEM (hard work and time...
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Forum: OpenFOAM Running, Solving & CFD
April 10, 2012, 07:12
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Replies: 298
Views: 70,983
Hi,
ALL IS EXPLAINED IN THE PROPELLER...
Hi,
ALL IS EXPLAINED IN THE PROPELLER TUTORIAL.
topoSet -dict system/createAMIFaces.topoSetDict
Please redo the propeller tutorial again and try to understand all steps !!!
Regards,
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Forum: OpenFOAM Running, Solving & CFD
April 10, 2012, 05:20
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Replies: 298
Views: 70,983
Hi,
I haven't save the 2 domains separately....
Hi,
I haven't save the 2 domains separately.
I have used ICEMCFD to generate the mesh. Only one domain containing the 2 fluid parts and the interface (AMI1=AMI2) between the fixed and moving...
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Forum: OpenFOAM Running, Solving & CFD
April 10, 2012, 04:10
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Replies: 298
Views: 70,983
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Forum: OpenFOAM Running, Solving & CFD
April 10, 2012, 03:01
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Replies: 298
Views: 70,983
Hi,
just try to follow the steps of the...
Hi,
just try to follow the steps of the propeller tutorial:
~/OpenFOAM-2.1.x/tutorials/incompressible/pimpleDyMFoam/propeller/
The first step is to redo the tutorial understanding all steps.
...
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Forum: OpenFOAM Running, Solving & CFD
February 27, 2012, 03:21
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Replies: 298
Views: 70,983
Hi again,
Now my propeller case runs. The...
Hi again,
Now my propeller case runs. The problem was the AMI1/AMI2 interface.
I have done my background mesh using ICEM hexa. See attached pictures. The pink/blue line is the AMI interface. I...
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Forum: OpenFOAM Running, Solving & CFD
February 22, 2012, 04:41
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Replies: 298
Views: 70,983
Hi Niels, hi Bruno,
thanks for your...
Hi Niels, hi Bruno,
thanks for your messages.
I have improved the mesh.
Nevertheless the case still crashes after:
AMI: Patch source weights min/max/average = 4.38449e-09, 1.09515, 0.999895...
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