Search Results - "Oughton, S."

Critical Balance and the Physics of Magnetohydrodynamic Turbulence by Oughton, S., Matthaeus, W. H.

“…A discussion of the advantages and limitations of the concept of critical balance (CB), as employed in turbulence phenomenologies, is presented. The…”
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Intermittency, nonlinear dynamics and dissipation in the solar wind and astrophysical plasmas by Matthaeus, W. H., Wan, Minping, Servidio, S., Greco, A., Osman, K. T., Oughton, S., Dmitruk, P.

“…An overview is given of important properties of spatial and temporal intermittency, including evidence of its appearance in fluids, magnetofluids and plasmas,…”
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A GENERALIZED TWO-COMPONENT MODEL OF SOLAR WIND TURBULENCE AND AB INITIO DIFFUSION MEAN-FREE PATHS AND DRIFT LENGTHSCALES OF COSMIC RAYS by Wiengarten, T., Oughton, S., Engelbrecht, N. E., Fichtner, H., Kleimann, J., Scherer, K.

“…ABSTRACT We extend a two-component model for the evolution of fluctuations in the solar wind plasma so that it is fully three-dimensional (3D) and also coupled…”
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Anisotropy in solar wind plasma turbulence by Oughton, S., Matthaeus, W. H., Wan, M., Osman, K. T.

“…A review of spectral anisotropy and variance anisotropy for solar wind fluctuations is given, with the discussion covering inertial range and dissipation range…”
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Reduced MHD in Astrophysical Applications: Two-dimensional or Three-dimensional? by Oughton, S., Matthaeus, W. H., Dmitruk, P.

“…Originally proposed as an efficient approach to computation of nonlinear dynamics in tokamak fusion research devices, reduced magnetohydrodynamics (RMHD) has…”
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Variance anisotropy in compressible 3‐D MHD by Oughton, S., Matthaeus, W. H., Wan, Minping, Parashar, Tulasi

“…We employ spectral method numerical simulations to examine the dynamical development of anisotropy of the variance, or polarization, of the magnetic and…”
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Turbulence transport throughout the heliosphere by Breech, B., Matthaeus, W. H., Minnie, J., Bieber, J. W., Oughton, S., Smith, C. W., Isenberg, P. A.

“…We employ a turbulence transport model to compute distributions of turbulence throughout the heliosphere. The model determines the radial dependence of three…”
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Finite Dissipation in Anisotropic Magnetohydrodynamic Turbulence by Bandyopadhyay, Riddhi, Oughton, S., Wan, M., Matthaeus, W. H., Chhiber, R., Parashar, T. N.

“…In the presence of an externally supported, mean magnetic field, a turbulent, conducting medium, such as plasma, becomes anisotropic. This mean magnetic field,…”
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Transport of solar wind fluctuations: A two-component model by Oughton, S., Matthaeus, W. H., Smith, C. W., Breech, B., Isenberg, P. A.

“…We present a new model for the transport of solar wind fluctuations which treats them as two interacting incompressible components: quasi‐two‐dimensional…”
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Power spectrum estimation methods on intracluster medium surface brightness fluctuations by Bishop, M., Perrott, Y., Parashar, T., Oughton, S.

“…Accurate estimation of galaxy cluster masses is a central problem in cosmology. Turbulence is believed to introduce significant deviations from the hydrostatic…”
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Electron and proton heating by solar wind turbulence by Breech, B., Matthaeus, W. H., Cranmer, S. R., Kasper, J. C., Oughton, S.

“…Previous formulations of heating and transport associated with strong magnetohydrodynamic (MHD) turbulence are generalized to incorporate separate internal…”
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Cross‐helically forced and decaying hydromagnetic turbulence by Brandenburg, A., Oughton, S.

“…We study the evolution of kinetic and magnetic energy spectra in magnetohydrodynamic flows in the presence of strong cross helicity. For forced turbulence, we…”
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NONLINEAR AND LINEAR TIMESCALES NEAR KINETIC SCALES IN SOLAR WIND TURBULENCE by Matthaeus, W H, Oughton, S, Osman, K T, Servidio, S, Wan, M, Gary, S P, Shay, M A, Valentini, F, Roytershteyn, V, Karimabadi, H, Chapman, S C

“…The application of linear kinetic treatments to plasma waves, damping, and instability requires favorable inequalities between the associated linear timescales…”
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LOCAL ANISOTROPY, HIGHER ORDER STATISTICS, AND TURBULENCE SPECTRA by MATTHAEUS, W. H, SERVIDIO, S, DMITRUK, P, CARBONE, V, OUGHTON, S, WAN, M, OSMAN, K. T

“…Correlation anisotropy emerges dynamically in magnetohydrodynamics (MHD), producing stronger gradients across the large-scale mean magnetic field than along…”
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MAGNETIC FIELD LINE RANDOM WALK IN MODELS AND SIMULATIONS OF REDUCED MAGNETOHYDRODYNAMIC TURBULENCE by SNODIN, A P, Ruffolo, D, Oughton, S, Servidio, S, Matthaeus, W H

“…The random walk of magnetic field lines is examined numerically and analytically in the context of reduced magnetohydrodynamic (RMHD) turbulence, which…”
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COMPLEXITY AND DIFFUSION OF MAGNETIC FLUX SURFACES IN ANISOTROPIC TURBULENCE by Servidio, S, Matthaeus, W H, Wan, M, Ruffolo, D, RAPPAZZO, A F, Oughton, S

“…The complexity of magnetic flux surfaces is investigated analytically and numerically in static homogeneous magnetic turbulence. Magnetic surfaces are computed…”
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Directional Alignment and Non-Gaussian Statistics in Solar Wind Turbulence by Osman, K. T, Wan, M, Matthaeus, W. H, Breech, B, Oughton, S

“…The magnetic and velocity field fluctuations in magnetohydrodynamic turbulence can be characterized by their directional alignment and induced electric field…”
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Coronal Heating Distribution Due to Low-Frequency, Wave-driven Turbulence by Dmitruk, P, Matthaeus, W. H, Milano, L. J, Oughton, S, Zank, G. P, Mullan, D. J

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POWER ANISOTROPY IN THE MAGNETIC FIELD POWER SPECTRAL TENSOR OF SOLAR WIND TURBULENCE by WICKS, R. T, FORMAN, M. A, HORBURY, T. S, OUGHTON, S

“…We observe the anisotropy of the power spectral tensor of magnetic field fluctuations in the fast solar wind for the first time. In heliocentric RTN…”
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Turbulence, Spatial Transport, and Heating of the Solar Wind by Matthaeus, W. H., Zank, G. P., Smith, C. W., Oughton, S.

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