8 April 2013 to 3 May 2013
Nordita
Europe/Stockholm timezone

Flow induction in MHD turbulence

17 Apr 2013, 11:00
1h
Nordita east (Nordita)

Nordita east

Nordita

Speaker

Dr Nobumitsu Yokoi (Institute of Industrial Science, University of Tokyo)

Description

Effect of cross helicity (velocity--magnetic-field correlation) in the mean momentum equation is investigated. Turbulent cross helicity enters the expression for the mean-field Lorentz force. Combined with the contributions through the Reynolds and turbulent Maxwell stresses, it gives a possibility to induce a flow. Mean momentum equation is examined from this viewpoint. As for some examples, poloidal flow in the reversed-shear (RS) mode in tokamak plasmas, torsional oscillations in the solar convection zone, and explosive magnetic reconnection are argued in this framework.

Presentation materials

There are no materials yet.