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On the Saturation of Astrophysical Dynamos : Numerical Experiments with the No-cosines flow
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dorch, Søren Bertil F. Archontis, Vasilis |
| Abstract | In the context of astrophysical dynamos we illustrate that the no-cosines flow, with zero mean helicity, can drive fast dynamo action and study the dynamo's mode of operation during both the linear and non-linear saturation regime: It turns out that in addition to a high growth rate in the linear regime, the dynamo saturates at a level significantly higher than normal turbulent dynamos, namely at exact equipartition when the magnetic Prandtl number Prm ∼ 1. Visualization of the magnetic and velocity fields at saturation will help us to understand some of the aspects of the non-linear dynamo problem. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://cds.cern.ch/record/792224/files/0409193.pdf |
| Alternate Webpage(s) | http://arxiv.org/pdf/astro-ph/0409193v1.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Arabic numeral 0 Astrophysical Phenomena Block cipher mode of operation Experiment Flow Imagery Magnetic Fields Magnetic Resonance Imaging Nonlinear system Numerical analysis Reynolds-averaged Navier–Stokes equations Turbulence Velocity (software development) |
| Content Type | Text |
| Resource Type | Article |
