Browsing by Author "Oughton, Sean"

Now showing items 1-5 of 83

  • Anisotropic scaling of magnetohydrodynamic turbulence

    Horbury, Timothy S.; Forman, Miriam A.; Oughton, Sean (American Physical Society, 2008)
    We present a quantitative estimate of the anisotropic power and scaling of magnetic field fluctuations in inertial range magnetohydrodynamic turbulence, using a novel wavelet technique applied to spacecraft measurements ...
  • Anisotropic three-dimensional MHD turbulence

    Matthaeus, William H.; Ghosh, Sanjoy; Oughton, Sean; Roberts, D. Aaron (1996)
    Direct spectral method simulation of the three-dimensional magnetohydrodynamics (MHD) equations is used to explore anisotropy that develops from initially isotropic fluctuations as a consequence of a uniform applied magnetic ...
  • Anisotropy in solar wind plasma turbulence

    Oughton, Sean; Matthaeus, WH; Wan, M; Osman, KT (ROYAL SOC, 2015-05-13)
    A review of spectral anisotropy and variance anisotropy for solar wind fluctuations is given, with the discussion covering inertial range and dissipation range scales. For the inertial range, theory, simulations and ...
  • Conditions for sustainment of magnetohydrodynamic turbulence driven by Alfvén waves

    Dmitruk, Pablo; Matthaeus, William H.; Milano, L. J.; Oughton, Sean (American Institute of Physics, 2001)
    In a number of space and astrophysical plasmas,turbulence is driven by the supply of wave energy. In the context of incompressible magnetohydrodynamics (MHD) there are basic physical reasons, associated with conservation ...
  • Coronal heating by magnetohydrodynamic turbulence driven by reflected low-frequency waves

    Matthaeus, William H.; Zank, Gary P.; Oughton, Sean; Mullan, D. J.; Dmitruk, Pablo (IOP PUBLISHING LTD, 1999)
    A candidate mechanism for the heating of the solar corona in open field line regions is described. The interaction of Alfvén waves, generated in the photosphere or chromosphere, with their reflections and the subsequent ...

Showing up to 5 theses - most recently added to Research Commons first.

  • Comparison of wave and turbulence evolution in magnetohydrodynamics

    McAlley, Hamish (The University of Waikato, 2023)
    Magnetohydrodynamics (MHD) is the area of physics dedicated to the study of electrically conducting fluids. These fluids can support linear waves and non-linear turbulence dynamics. This thesis presents results and analysis ...
  • Transport of turbulence in the solar wind

    Bishop, Mark (The University of Waikato, 2022)
    Charged particles are ejected from the sun and transported radially outward to the edge of the solar system, this plasma is called the solar wind. In the solar wind, turbulent fluctuations and waves form, and their transport ...
  • Steady and unsteady visco-resistive reconnection in the presence of the Hall effect

    McMahon, Liam (The University of Waikato, 2021)
    In this thesis we investigate the effects of viscosity and the Hall effect on magnetic reconnection. Magnetic reconnection is a process of releasing large amounts of magnetic energy as observed in solar flares. In the first ...
  • Maxwell's Equations on a 10-Dimensional Manifold with local Symmetry so(2,3)

    Crump, William Peter (University of Waikato, 2012)
    The Hawthorn model is built upon the idea that the Lie algebra so(2, 3) is a more natural description of the local structure of spacetime than the Poincar´e Lie algebra. This model uses a 10-dimensional spacetime referred ...
  • A Review of the Dynamics and Oscillations of the Atmosphere

    Ross, Joseph (University of Waikato, 2012)
    The atmosphere is a complex, dynamic system and the weather depends on its state. There are many different phenomena that affect the state of the atmosphere - some only involve the atmosphere, others involve the interaction ...