Random Interactions
Dynamo Transition and Reversals
by Prof. Mahendra Verma (IIT, Kanpur)
Wednesday, June 29, 2011
from
to
(Asia/Kolkata)
at Colaba Campus ( A304 )
at Colaba Campus ( A304 )
Description |
Generation of magnetic fields in planets, stars, and galaxies, also known as the dynamo, is an outstanding problem. Recent experiments and simulations explore the conditions of the dynamo transition, as well behaviour near the transition. Various periodic, quasiperiodic, chaotic dynamo states have been observed near the transition in dynamo experiments and simulations. Another intriguing feature of the dynamo is reversal of the magnetic field. Both the solar- and geo-magnetic fields are known to reverse. In the present talk we will present some of the recent results related to the above issues. We will also present certain similarities of the dynamo reversal with reversals observed in convection. |