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Magnetohydrodynamic turbulence

Statistics of passive tracers in three dimensional magnetohydrodynamic turbulence

Statistics of passive tracers in three dimensional magnetohydrodynamic turbulence

... the relative velocity must be sought in the effect of the local mean magnetic field on the relative dispersion process. Al- though macroscopically the MHD system has no mean mag- netic field, on small spatial scales the ...

13

Anisotropic intermittency of magnetohydrodynamic turbulence

Anisotropic intermittency of magnetohydrodynamic turbulence

... range magnetohydrodynamic turbulence is presented using measurements from the STEREO spacecraft in fast ambient solar ...magnetofluid turbulence energy ...

5

Directional and scale-dependent statistics of quasi-static magnetohydrodynamic
            turbulence

Directional and scale-dependent statistics of quasi-static magnetohydrodynamic turbulence

... The aim of this paper is to examine anisotropy and intermittency of the quasi-static MHD turbulence, by using directional and scale dependent statistics [10]. We study the influence of the strength of the magnetic ...

8

Cluster observation of magnetohydrodynamic turbulence in the plasma sheet boundary layer

Cluster observation of magnetohydrodynamic turbulence in the plasma sheet boundary layer

... one may construct a scenario such that a forward-prop- agating Alfvén wave (e.g., with respect to the large-scale magnetic field) interacts with a backward propagating slow mode, generating sideband waves at a low wave- ...

9

General second-rank correlation tensors for homogeneous magnetohydrodynamic turbulence

General second-rank correlation tensors for homogeneous magnetohydrodynamic turbulence

... homogeneous turbulence, and representation of the correlation tensors must allow for this possibility @ 7,16 # ...Homogeneous turbulence can also depend on higher-order tensor quantities, such as the ...

14

Reduction of Nonlinear Effects in Magnetohydrodynamic and Hall Magnetohydrodynamic Turbulence

Reduction of Nonlinear Effects in Magnetohydrodynamic and Hall Magnetohydrodynamic Turbulence

... We analyzed energy transfer processes induced by triad mode interactions in homogeneous, isotropic tur- bulence in magnetohydrodynamic (MHD) and Hall magnetohydrodynamic (HMHD) media. In particular, we ...

5

An analytical, phenomenological and numerical study of geophysical and magnetohydrodynamic turbulence in two dimensions

An analytical, phenomenological and numerical study of geophysical and magnetohydrodynamic turbulence in two dimensions

... It is worth mentioning that numerical simulations of two-dimensional turbulence have routinely used a variety of forcing that provides steady energy and enstrophy in- jection rates ǫ and η. This class of forcing ...

199

Nonlocal Interaction of Inverse Magnetic Energy Transfer in Hall Magnetohydrodynamic Turbulence

Nonlocal Interaction of Inverse Magnetic Energy Transfer in Hall Magnetohydrodynamic Turbulence

... A detailed analysis of forward and inverse energy transfer processes due to the Hall term effect in freely de- caying, homogeneous, isotropic Hall magnetohydrodynamics (HMHD) turbulence is performed through Fourier ...

5

Large-Eddy Simulations of Magnetohydrodynamic Turbulence in Heliophysics and Astrophysics

Large-Eddy Simulations of Magnetohydrodynamic Turbulence in Heliophysics and Astrophysics

... The dynamics of the formation of current sheets and other small scale coherent structures is of great importance in understanding the intermittent cascade and its fate. Furthermore, current sheet formation may be quite ...

52

On the applicability of Taylor’s hypothesis in streaming magnetohydrodynamic turbulence

On the applicability of Taylor’s hypothesis in streaming magnetohydrodynamic turbulence

... velocity turbulence to find out what the original wavenumber spectrum was/is, not the magnetic ...velocity turbulence can be Taylor–Galilei transformed into the spacecraft fre- quency frame, while the ...

18

Anisotrophy of magnetohydrodynamic turbulence at low magnetic Reynolds number

Anisotrophy of magnetohydrodynamic turbulence at low magnetic Reynolds number

... of turbulence by a magnetic field, this formulation is at odds with the situation in many real flows, where there is a steady energy input into large ...of turbulence is maintained by, respectively, nozzle ...

12

Analytical solutions of magnetohydrodynamic newtonian and second grade fluids in a porous medium

Analytical solutions of magnetohydrodynamic newtonian and second grade fluids in a porous medium

... The ow is induced due to constantly accelerated and oscillating plate. Expressions for the corresponding velocity eld and the adequate tangential stress are determined by means of the Fourier sine transform. In an other ...

38

Buoyancy-driven Magnetohydrodynamic Waves

Buoyancy-driven Magnetohydrodynamic Waves

... Turbulent motions close to the visible solar surface may generate low-frequency internal gravity waves ( IGWs ) that propagate through the lower solar atmosphere. Magnetic activity is ubiquitous throughout the solar ...

11

Saturn's quasiperiodic magnetohydrodynamic waves

Saturn's quasiperiodic magnetohydrodynamic waves

... Pulsations observed at Earth are typically associated with magnetohydrodynamic (MHD) waves [Dungey, 1955; Takahashi et al., 2006; Keiling, 2009]. MHD waves are considered ultralow frequency (ULF) waves if their ...

11

Scaling laws in Hall inertial range turbulence

Scaling laws in Hall inertial range turbulence

... of magnetohydrodynamic (MHD) turbulence on spa- tial scales smaller than the ion-inertial ...of turbulence energy, for example in wave– particle ...MHD turbulence, which is indicative of a ...

10

Assessment of Cardiac Autonomic Function by Using Heart Rate Turbulence in Behcet’s Disease

Assessment of Cardiac Autonomic Function by Using Heart Rate Turbulence in Behcet’s Disease

... rate turbulence (HRT) is a new predictor of cardiac autonomic ...parameters, turbulence onset (TO) and turbulence slope (TS) were calculated with HRT (View Version ...

8

Magnetohydrodynamic code for gravitationally-stratified media

Magnetohydrodynamic code for gravitationally-stratified media

... Since we are planning to use the code mainly for the forward modelling of helioseismological processes and for the coupling processes in the solar interior, photosphere, and corona, we h[r] ...

9

A prototype stochastic parameterization of regime behaviour in the stably stratified atmospheric boundary layer

A prototype stochastic parameterization of regime behaviour in the stably stratified atmospheric boundary layer

... 2) turbulence pulses occur (none of which are individually sufficient to ini- tiate a vSBL to wSBL ...These turbulence pulses result in heat fluxes slightly larger than observed but of the right order of ...

27

Magnetohydrodynamic surface waves in the solar atmosphere

Magnetohydrodynamic surface waves in the solar atmosphere

... Gordon and Hollweg (1983) considered the damping of magnetohydrodynamic surface waves in the solar corona by collisional dissipation. They excluded coronal holes from their analysis and confined their attention to ...

210

Magnetohydrodynamic oscillations in solar coronal rain

Magnetohydrodynamic oscillations in solar coronal rain

... We presented observational evidence of thermal instability and an associated analysis of temperature and density evolution of a thermally unstable coronal loop; evidence and analysis of [r] ...

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