Now showing items 6-10 of 76

  • Coronal MHD transport theory and phenomenology

    Milano, L. J.; Matthaeus, William H.; Dmitruk, Pablo; Oughton, Sean (American Institute of Physics, 2003)
    In the presence of a weakly inhomogeneous background, magnetohydrodynamic fluctuations are transported, reflected and at small scales, dissipated. In contrast to orderings appropriate to outer solar wind conditions, here ...
  • Current singularities at finitely compressible three-dimensional magnetic null points

    Dmitruk, Pablo; Matthaeus, William H.; Oughton, Sean (American Institute of Physics, 2005-07-15)
    The formation of current singularities at line-tied two- and three-dimensional (2D and 3D, respectively) magnetic null points in a nonresistive magnetohydrodynamic environment is explored. It is shown that, despite the ...
  • Direct comparisons of compressible magnetohydrodynamics and reduced magnetohydrodynamics turbulence

    Oughton, Sean; Dmitruk, Pablo; Matthaeus, William H. (American Institute of Physics, 2005-11-11)
    Direct numerical simulations of low Mach number compressible three-dimensional magnetohydrodynamic (CMHD3D) turbulence in the presence of a strong mean magnetic field are compared with simulations of reduced magnetohydrodynamics ...
  • Directional alignment and non-Gaussian statistics in solar wind turbulence

    Osman, Kareem T.; Wan, Minping; Matthaeus, William H.; Breech, Ben; Oughton, Sean (IOP Publishing, 2011)
    The magnetic and velocity field fluctuations in magnetohydrodynamic turbulence can be characterized by their directional alignment and induced electric field. These manifest as coherent spatial correlations which are ...
  • Dynamical age of solar wind turbulence in the outer heliosphere

    Matthaeus, William H.; Smith, Charles W.; Oughton, Sean (American Geophysical Union (AGU), 1998)
    In an evolving turbulent medium, a natural timescale can be defined in terms of the energy decay time. The time evolution may be complicated by other effects such as energy supply due to driving, and spatial inhomogeneity. ...