Statistics – Computation
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm51c1836r&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SM51C-1836
Statistics
Computation
[0545] Computational Geophysics / Modeling, [2723] Magnetospheric Physics / Magnetic Reconnection, [7526] Solar Physics, Astrophysics, And Astronomy / Magnetic Reconnection, [7863] Space Plasma Physics / Turbulence
Scientific paper
We present our latest results based on large-scale two dimensional resistive magnetohydrodynamic (MHD) simulations for the magnetic reconnection process in the configuration of island coalescence instability. These simulations are performed using a fairly standard pseudo spectral code, which has been well tested for accuracy, convergence, and compared well with codes using other methods. Cases with a range of Lundquist number S are run using resolutions up to 81922 and thus with S up to 2 × 105. It is found that the reconnection rate is consistent with the Sweet-Parker theory with no tearing instability of the Sweet-Parker current sheet or secondary island (plasmoid) formation when simulations are well resolved and without external noise. However, secondary islands have been observed to form, with faster reconnection rate in simulations superimposed with turbulence (noise). We will present results on the scaling of reconnection rate with S, as well as turbulence levels. This work is supported by a NASA grant NNX08BA71G, and a NSF grant AGS-0962477.
Ng Cindy
Ragunathan S.
No associations
LandOfFree
High-Lundquist Number Resistive MHD Simulations of Turbulent Magnetic Reconnection with Secondary Island Formation and Enhanced Reconnection Rate does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High-Lundquist Number Resistive MHD Simulations of Turbulent Magnetic Reconnection with Secondary Island Formation and Enhanced Reconnection Rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-Lundquist Number Resistive MHD Simulations of Turbulent Magnetic Reconnection with Secondary Island Formation and Enhanced Reconnection Rate will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1474375