On the accuracy of simulation of magnetohydrodynamic turbulence and magnetic reconnection

Details On the accuracy of simulation of magnetohydrodynamic turbulence and magnetic reconnection On the accuracy of simulation of magnetohydrodynamic turbulence and magnetic reconnection

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm51c1840w&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SM51C-1840

Physics

Plasma Physics

[2723] Magnetospheric Physics / Magnetic Reconnection, [7833] Space Plasma Physics / Mathematical And Numerical Techniques, [7835] Space Plasma Physics / Magnetic Reconnection, [7863] Space Plasma Physics / Turbulence

Scientific paper

The widely recognized issue of adequate spatial resolution in numerical simulations of turbulence is studied in the context of two-dimensional magnetohydrodynamics. By comparing simulations carried out at varying resolution and at varying Reynolds numbers, the familiar criterion that the dissipation scale should be resolved is found to enable accurate computation of the spectrum, but fail for precise determination of higher-order statistical quantities. Examination of two straightforward diagnostics, the maximum of the kurtosis and the scale-dependent kurtosis, enables the development of simple tests for assessing adequacy of spatial resolution. The efficacy of the tests is confirmed by examining a sample problem, the distribution of magnetic reconnection rates in turbulence. Over-sampling the Kolmogorov dissipation scale by a factor of 3 allows accurate computation of the kurtosis, the scale-dependent kurtosis, and the reconnection rates. These tests may provide useful guidance for resolution requirements in many plasma computations involving turbulence and reconnection. [Phys. Plasmas 17, 082308 (2010)]

Affiliated with

Also associated with

No associations

Rating

On the accuracy of simulation of magnetohydrodynamic turbulence and magnetic reconnection 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 On the accuracy of simulation of magnetohydrodynamic turbulence and magnetic reconnection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the accuracy of simulation of magnetohydrodynamic turbulence and magnetic reconnection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1474510