Title: Toward a Self-generating Magnetic Dynamo: the Role of Turbulence
Speaker: Daniel Lathrop
Speaker Info: U. Maryland
Special Note: Note unusal date and time!
Turbulent flow of liquid sodium is driven toward the transition to self-generating magnetic fields. The approach toward the transition is monitored with decay measurements of pulsed magnetic fields. These measurements show significant fluctuations due to the underlying turbulent fluid flow field. This talk presents experimental characterizations of the fluctuations in the decay rates and induced magnetic fields. These fluctuations have a significant implications on the transition to self-generation which should occur at larger magnetic Reynolds number. Specifically, we predict that the transition will show intermittency.Date: Monday, June 12, 2000