Reversals of a large scale field generated over a turbulent background

Details Reversals of a large scale field generated over a turbulent background Reversals of a large scale field generated over a turbulent background

2011-02-02

arxiv.org/abs/1102.0477v1

Physics

Fluid Dynamics

Scientific paper

We present a study of several systems in which a large scale field is generated over a turbulent background. These large scale fields usually break a symmetry of the forcing by selecting a direction. Under certain conditions, the large scale field displays reversals so that the symmetry of the forcing is recovered statistically. We present examples of such dynamics in the context of the dynamo instability, of two dimensional turbulent Kolmogorov flows and of turbulent Rayleigh-B\'enard convection. In these systems reversals occur respectively for the dynamo magnetic field, for the large scale circulation generated by a periodic forcing in space and for the large scale roll generated by turbulent thermal convection. We compare the mechanisms involved and show that their properties depend on some symmetries of the system and on the way they are broken.

Affiliated with

Also associated with

No associations

Rating

Reversals of a large scale field generated over a turbulent background does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Reversals of a large scale field generated over a turbulent background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reversals of a large scale field generated over a turbulent background will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-81442