[GTP] HAO-GTP talk at NCAR-Nobumitsu Yokoi

[Silvia Gentile]

Speaker: Nobumitsu Yokoi,
Institute of Industrial Science, University of Tokyo
Time: 1:30–2:30 pm
Date: Wednesday, September 5, 2012
Location: CG1-1210, South Auditorium
Title: Cross helicity and related dynamo
Abstract:
The turbulent cross helicity (velocity--magnetic-field correlation in 
turbulence) coupled with the large-scale vortical motion leads to the 
turbulent electromotive force aligned with the mean vorticity. This is 
called the cross-helicity effect in magnetic-field induction, and is in 
remarkable contrast with the well-known helicity or alpha effect, where
the induced electromotive force is aligned with the mean magnetic field. 
The cross-helicity effect has been investigated in several astro/ 
geophysical and fusion plasma phenomena. Some important features of the 
cross-helicity dynamo will be presented with introducing some 
illustrative applications to astro/geophysical and fusion plasma 
phenomena, which include the solar dynamo, large-scale magnetic fields 
in galaxies, spontaneous plasma rotation in some improved confinement
modes in fusion tokamaks, etc.

-- 
Silvia Gentile
NCAR IMAGe
1850 Table Mesa Drive
Boulder, CO 80305
303 497 2480
www2.image.ucar.edu