EGU22-1577, updated on 27 Mar 2022
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Physical Regimes of 2D MHD turbulent reconnection in different Lundquist numbers

Haomin Sun1,2, Yan Yang3, Quanming Lu1,2, San Lu1,2, Minping Wan3, and Rongsheng Wang1,2
Haomin Sun et al.
  • 1CAS Key Laboratory of Geospace Environment, Department of Geophysics and Planetary Science, University of Science and Technology of China, Hefei, Anhui, People’s Republic of China
  • 2CAS Center for Excellence in Comparative Planetology, People’s Republic of China
  • 3Southern University of Science and Technology, Shenzhen, Guangdong 518055, China

Using two-dimensional (2D) MHD simulations in different Lundquist numbers , we investigate physical regimes of turbulent reconnection and the role of turbulence in enhancing the reconnection rate. Turbulence is externally injected into the system with varying strength. External driven turbulence contributes to the conversion of magnetic energy to kinetic energy flowing out of the reconnection site and thus enhances the reconnection rate. The plasmoids formed in high Lundquist numbers contribute to the fast reconnection rate as well. Moreover, an analysis of the power of turbulence implies its possible association with the generation of plasmoids. Additionally, the presence of turbulence has great impact on the magnetic energy conversion and may be favorable for the Kelvin-Helmholtz (K-H) instability in the magnetic reconnection process.

How to cite: Sun, H., Yang, Y., Lu, Q., Lu, S., Wan, M., and Wang, R.: Physical Regimes of 2D MHD turbulent reconnection in different Lundquist numbers, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-1577,, 2022.