Magnetic Reconnection in Plasmas

Session

Pre-noon III

32

12 Aug 2015, 11:10

132:028 (Nordita, Stockholm)

Conveners

Pre-noon III

• Ivo Furno (EPFL)

350. Recent progresses on laser driven magnetic reconnection

Dr Jiayong Zhong (Department of Astronomy, Beijing Normal University)

12/08/2015, 11:10

Workshop, August 10-14

Invited

Laser driven magnetic reconnection (LDMR) is constructed with self- generated B fields has been experimentally and theoretically studied extensively, where more than Mega-Gauss strong B fields are spontaneously generated in high-power laser-plasma interactions, which located on the target surface and produced by non- parallel temperature and density gradients of expanding...

342. Dependence of magnetic dissipation on magnetic Prandtl number

Prof. Axel Brandenburg (Nordita)

12/08/2015, 11:35

Workshop, August 10-14

Oral

Using direct numerical simulations of three-dimensional hydromagnetic turbulence, either with helical or non-helical forcing, we show that the ratio of kinetic-to-magnetic energy dissipation always increases with the magnetic Prandtl number, i.e., the ratio of kinematic viscosity to magnetic diffusivity. This dependence can be approximated by a power law, but the exponent is not...

363. Magnetic reconnection during formation of bipolar structures from stratified helical dynamos

Prof. Igor Rogachevskii (Ben-Gurion University of the Negev and Nordita)

12/08/2015, 12:00

Workshop, August 10-14

Oral

We study different regimes of magnetic reconnection during formation of bipolar structures using direct numerical simulations of the equations of magnetohydrodynamics with external random forcing and in the presence of gravity. The domain is divided into two parts: a lower layer with the helical forcing and an upper layer with the non-helical forcing with a smooth transition in...