### Abstract

A statistical equilibrium ensemble for a class of nonlinear, ideal, compressible magnetohydrodynamics models is constructed. If the departure from thermal equilibrium is due to helical magnetic-field configurations, then the magnetic-field fluctuation spectrum differs profoundly from that predicted by Landau's theory of fluid fluctuations which involves zero helicity. Some of the results of that theory however are recovered, as far as fluctuations of fluid-dynamical (nonmagnetic) variables are concerned, in the linear limit of our nonlinear theory. Comparisons are also made with related models of incompressible plasma turbulence.

Original language | English (US) |
---|---|

Pages (from-to) | 2271-2277 |

Number of pages | 7 |

Journal | Physics of Fluids |

Volume | 25 |

Issue number | 12 |

State | Published - 1982 |

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### ASJC Scopus subject areas

- Condensed Matter Physics
- Physics and Astronomy(all)
- Mechanics of Materials
- Computational Mechanics
- Fluid Flow and Transfer Processes

### Cite this

*Physics of Fluids*,

*25*(12), 2271-2277.

**Magnetohydrodynamic fluctuations near thermal equilibrium.** / Hameiri, Eliezer; Rose, Harvey A.

Research output: Contribution to journal › Article

*Physics of Fluids*, vol. 25, no. 12, pp. 2271-2277.

}

TY - JOUR

T1 - Magnetohydrodynamic fluctuations near thermal equilibrium

AU - Hameiri, Eliezer

AU - Rose, Harvey A.

PY - 1982

Y1 - 1982

N2 - A statistical equilibrium ensemble for a class of nonlinear, ideal, compressible magnetohydrodynamics models is constructed. If the departure from thermal equilibrium is due to helical magnetic-field configurations, then the magnetic-field fluctuation spectrum differs profoundly from that predicted by Landau's theory of fluid fluctuations which involves zero helicity. Some of the results of that theory however are recovered, as far as fluctuations of fluid-dynamical (nonmagnetic) variables are concerned, in the linear limit of our nonlinear theory. Comparisons are also made with related models of incompressible plasma turbulence.

AB - A statistical equilibrium ensemble for a class of nonlinear, ideal, compressible magnetohydrodynamics models is constructed. If the departure from thermal equilibrium is due to helical magnetic-field configurations, then the magnetic-field fluctuation spectrum differs profoundly from that predicted by Landau's theory of fluid fluctuations which involves zero helicity. Some of the results of that theory however are recovered, as far as fluctuations of fluid-dynamical (nonmagnetic) variables are concerned, in the linear limit of our nonlinear theory. Comparisons are also made with related models of incompressible plasma turbulence.

UR - http://www.scopus.com/inward/record.url?scp=36749116796&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=36749116796&partnerID=8YFLogxK

M3 - Article

VL - 25

SP - 2271

EP - 2277

JO - Physics of Fluids

JF - Physics of Fluids

SN - 1070-6631

IS - 12

ER -