Forum: OpenFOAM Running, Solving & CFD
April 28, 2017, 05:22
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Replies: 68
Views: 18,062
Hi,
From my experience with MRF, the wake...
Hi,
From my experience with MRF, the wake and flow field it produces often look quite misleading so I wouldn't be surprised if it were very different from AMI. Still, it's troubling that your...
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Forum: OpenFOAM Running, Solving & CFD
February 28, 2017, 07:03
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Replies: 68
Views: 18,062
Hi,
I think in both cases you will need to...
Hi,
I think in both cases you will need to build the full grid of stator and rotor but somehow ensure you can export them as separate OF meshes with the AMI cylinder being a shared patch. What I...
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Forum: OpenFOAM Running, Solving & CFD
February 28, 2017, 05:05
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Replies: 68
Views: 18,062
Hi,
Sorry to hear that. In Pointwise this can...
Hi,
Sorry to hear that. In Pointwise this can be done by meshing the rotor and stator as a single volume but including a cylinder that will represent the AMI as an internal domain (see attachment)....
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Forum: OpenFOAM Running, Solving & CFD
February 27, 2017, 10:18
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Replies: 68
Views: 18,062
Hi,
Sorry for the delay in my reply. Have...
Hi,
Sorry for the delay in my reply. Have you made any progress on the case since the last post? I read through your thread again and I'm afraid I'd have done the same thing as you, so not many...
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Forum: OpenFOAM Running, Solving & CFD
February 20, 2017, 08:54
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Replies: 68
Views: 18,062
Hi,
Hmm, the mesh seems OK at the first...
Hi,
Hmm, the mesh seems OK at the first glance. One thing which I've found to help with the weightings going to zero sometimes is to coarsen the grid at the AMI instead of making it finer (it...
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Forum: OpenFOAM Running, Solving & CFD
February 16, 2017, 11:38
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Replies: 68
Views: 18,062
Hi,
Glad to hear you found some of my posts...
Hi,
Glad to hear you found some of my posts useful. Definitely the 3rd approach you're describing (with including a cylinder in the mesh and then splitting it the same way you'd do with...
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Forum: OpenFOAM Running, Solving & CFD
January 23, 2017, 05:05
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
October 1, 2013, 11:47
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
August 14, 2013, 11:41
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Replies: 68
Views: 18,062
1. I think you can use the cellzones created by...
1. I think you can use the cellzones created by sHM, I recall that I did it some time ago and it worked but there was something about it that made me stick to the approach proposed by the tutorial...
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Forum: OpenFOAM Running, Solving & CFD
July 22, 2013, 03:43
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
July 19, 2013, 07:33
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
July 19, 2013, 07:23
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Replies: 68
Views: 18,062
my run with rotatingMovingWall has now fully...
my run with rotatingMovingWall has now fully converged in terms of forces. I ran it with exact same settings as the previous one for advance coefficient of J = 0.64 (1.601ms-1 advance velocity at ~10...
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Forum: OpenFOAM Running, Solving & CFD
July 19, 2013, 05:49
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Replies: 68
Views: 18,062
Yes, I've seen that with the movingWall BC...
Yes, I've seen that with the movingWall BC because despite small Ux components my pressure distributions and forces were very close to what they should have been. But it seems that with...
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Forum: OpenFOAM Running, Solving & CFD
July 19, 2013, 05:33
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Replies: 68
Views: 18,062
There are still a number of cells where the...
There are still a number of cells where the velocity is very small but non-zero but that is most likely due to my mesh not being perfect (occurs mainly around the feature lines). Other than that it...
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Forum: OpenFOAM Running, Solving & CFD
July 19, 2013, 03:19
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
July 18, 2013, 10:23
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Replies: 68
Views: 18,062
Going step by step through the allrun.pre
1....
Going step by step through the allrun.pre
1. run blockMesh - create a rectangular domain
2. extract features of the outerCylinder - will form the new domain, innerCylinder - will form the...
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Forum: OpenFOAM Running, Solving & CFD
July 18, 2013, 09:41
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
July 18, 2013, 09:16
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
July 18, 2013, 06:05
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Replies: 68
Views: 18,062
Hi,
I'm a bit busy today so perhaps you want...
Hi,
I'm a bit busy today so perhaps you want to look at my setup first and then if you can't work it out I can have a look at your case? See the attachments. Execution order is: snappy, topoSet,...
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Forum: OpenFOAM Running, Solving & CFD
July 17, 2013, 08:53
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Replies: 68
Views: 18,062
I have ran a simulation of the same prop with a...
I have ran a simulation of the same prop with a different hub and set up so that there is a continuous shaft coming from the inlet to the upstream end of the hub. Out of curiosity I checked the Ux...
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Forum: OpenFOAM Running, Solving & CFD
July 16, 2013, 05:17
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
July 16, 2013, 05:05
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Replies: 68
Views: 18,062
In that case your initial approach is the only...
In that case your initial approach is the only way I can think of. Sadly, I haven't got much experience in using externally generated meshes though so perhaps someone else could help you with that...
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Forum: OpenFOAM Running, Solving & CFD
July 16, 2013, 04:57
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
July 15, 2013, 09:56
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Replies: 68
Views: 18,062
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Forum: OpenFOAM Running, Solving & CFD
July 15, 2013, 09:23
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Replies: 68
Views: 18,062
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