Weak and Strong MHD Turbulence

被引：0
|
作者：
Gogoberidze, G. [1 ,2 ]
Mahajan, S. [3 ]
Poedts, S. [1 ]
Akhalkatsi, M. [2 ]
机构：
[1] Katholieke Univ Leuven, Ctr Plasma Astrophys, Celestijnenlaan 200B, B-3001 Louvain, Belgium
[2] Ilia State Univ, Inst Theoret Phys, Tbilisi 0162, Georgia
[3] Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA
来源：
3RD SCHOOL AND WORKSHOP ON SPACE PLASMA PHYSICS | 2011年 / 1356卷
关键词：
magnetohydrodynamic turbulence; turbulence modeling; INTERSTELLAR TURBULENCE; SIMULATIONS; ANISOTROPY;
D O I：
10.1063/1.3598094
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The general conditions for the weak and strong regimes of incompressible magnetohydrodynamic turbulence are derived and studied in the framework of the direct interaction approximation. It is shown that in the framework of the weak turbulence theory, the autocorrelation and cascade timescales are always of the same order of magnitude. This means that, contrary to the general belief, any model of turbulence which implies a large number of collisions among wave packets for an efficient energy cascade (such as the Iroshnikov-Kraichnan model), does not represent a model of weak turbulence.
引用
收藏
页数：8
相关论文
共 50 条
  • [1] Residual Energy in Weak and Strong MHD Turbulence
    Boldyrev, Stanislav
    Perez, Jean Carlos
    Wang, Yuxuan
    NUMERICAL MODELING OF SPACE PLASMA FLOWS: ASTRONUM-2011, 2011, 459 : 3 - 8
  • [2] Transition from Weak to Strong Cascade in MHD Turbulence
    Verdini, Andrea
    Grappin, Roland
    PHYSICAL REVIEW LETTERS, 2012, 109 (02)
  • [3] Imbalanced strong MHD turbulence
    Lithwick, Y.
    Goldreich, P.
    Sridhar, S.
    ASTROPHYSICAL JOURNAL, 2007, 655 (01): : 269 - 274
  • [4] GENERATION OF STRONG MHD ALFVENIC TURBULENCE
    AKIMOTO, K
    WINSKE, D
    PHYSICAL REVIEW LETTERS, 1990, 64 (07) : 753 - 756
  • [5] Particle acceleration in strong MHD turbulence
    Lemoine, Martin
    PHYSICAL REVIEW D, 2021, 104 (06)
  • [6] On weak and strong magnetohydrodynamic turbulence
    Perez, Jean Carlos
    Boldyrev, Stanislav
    ASTROPHYSICAL JOURNAL LETTERS, 2008, 672 (01): : L61 - L64
  • [7] Strong anisotropic MHD turbulence with cross helicity
    Chandran, Benjamin D. G.
    ASTROPHYSICAL JOURNAL, 2008, 685 (01): : 646 - 658
  • [8] COEXISTENCE OF WEAK AND STRONG LANGMUIR TURBULENCE
    RUBENCHIK, AM
    SHAPIRO, EG
    JETP LETTERS, 1991, 54 (01) : 17 - 21
  • [9] CONCEPTUAL PROBLEMS OF WEAK AND STRONG TURBULENCE
    RUELLE, D
    PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1984, 103 (1-4): : 81 - 85
  • [10] Coronal heating, weak MHD turbulence, and scaling laws
    Rappazzo, A. F.
    Velli, M.
    Einaudi, G.
    Dahlburg, R. B.
    ASTROPHYSICAL JOURNAL, 2007, 657 (01): : L47 - L51
12345