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Forum: OpenFOAM Running, Solving & CFD April 16, 2018, 20:49
Replies: 11
Views: 1,712
Posted By chaz
Hello Anton, Any observations on how, or if I...

Hello Anton,
Any observations on how, or if I should be able to get convergence with simpleFoam? latest case attached. Please see my other comment. Inherent oscillatory behavior making...
Forum: OpenFOAM Running, Solving & CFD April 16, 2018, 20:45
Replies: 11
Views: 1,712
Posted By chaz
Thank you for the link, Taher.The method used in...

Thank you for the link, Taher.The method used in that study is much better. At low RPMs, the problem converges nicely. This uses a single mesh with the inner and outer walls having the u bc of...
Forum: OpenFOAM Running, Solving & CFD April 15, 2018, 21:39
Replies: 11
Views: 1,712
Posted By chaz
Hi, Yes, Taylor-Couette flow in the real world...

Hi,
Yes, Taylor-Couette flow in the real world is not simple, but the first step of modeling it that I am doing should be (relative to matching experiments with foam with turbulence). I am not...
Forum: OpenFOAM Running, Solving & CFD April 15, 2018, 19:24
Replies: 11
Views: 1,712
Posted By chaz
Per your earlier question, I took a look at the...

Per your earlier question, I took a look at the choice of boundary conditions. I also made the solver changes you suggested. Rather than having a wall with zero gradient on the top and bottom, I...
Forum: OpenFOAM Running, Solving & CFD April 13, 2018, 16:38
Replies: 11
Views: 1,712
Posted By chaz
Thank you for the thoughts. One thing I did not...

Thank you for the thoughts. One thing I did not mention is that the model is laminar, not adding turbulence until I can get stability with a laminar solution.

I am using cfMesh's Cartesian mesh,...
Forum: OpenFOAM Running, Solving & CFD April 12, 2018, 21:07
Replies: 11
Views: 1,712
Posted By chaz
Stability at high rotational speed, Taylor-Couette Flow, simpleFoam, MRF / AMI

Hello,
I am trying to match theory for taylor-couette flow. It is a cylindrical body with the inner wall rotating and the outer wall fixed. No inlets, no outlets. I need assistance with...
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