HR: 0800h
AN: NG21B-0518    [Abstracts]
TI: MHD simulation of intermittent turbulence
AU: * Wu, C
EM: ccwu@ucla.edu
AF: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90095, United States
AU: Chang, T
EM: tsc@space.mit.edu
AF: Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, CA 02139, United States
AB: Space observations indicate that the dynamical processes in the space plasma environment generally entail anisotropic and localized intermittent fluctuations. Results from two-dimensional incompressible MHD simulations are presented to demonstrate the formation of coherent structures and the intermittent turbulence. Several characteristics of intermittent fluctuations, such as non-Gaussian probability distribution functions, the spottiness of the small-scale fluctuations and the multifractal nature, are obtained in the simulations and will be reported.
DE: 2149 MHD waves and turbulence (2752, 6050, 7836)
DE: 3200 MATHEMATICAL GEOPHYSICS (0500, 4400, 7833)
DE: 4440 Fractals and multifractals
DE: 4455 Nonlinear waves, shock waves, solitons (0689, 2487, 3280, 3285, 4275, 6934, 7851, 7852)
DE: 4490 Turbulence (3379, 4568, 7863)
SC: Nonlinear Geophysics [NG]
MN: 2007 Fall Meeting