Dynamo Transition in Low-dimensional Models

Nonlinear Sciences – Chaotic Dynamics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

7 pages

Scientific paper

10.1103/PhysRevE.78.036409

Two low-dimensional magnetohydrodynamic models containing three velocity and three magnetic modes are described. One of them (nonhelical model) has zero kinetic and current helicity, while the other model (helical) has nonzero kinetic and current helicity. The velocity modes are forced in both these models. These low-dimensional models exhibit a dynamo transition at a critical forcing amplitude that depends on the Prandtl number. In the nonhelical model, dynamo exists only for magnetic Prandtl number beyond 1, while the helical model exhibits dynamo for all magnetic Prandtl number. Although the model is far from reproducing all the possible features of dynamo mechanisms, its simplicity allows a very detailed study and the observed dynamo transition is shown to bear similarities with recent numerical and experimental results.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Dynamo Transition in Low-dimensional Models 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 Dynamo Transition in Low-dimensional Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamo Transition in Low-dimensional Models will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-393014

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.