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Volumn 56, Issue 3, 1997, Pages 2875-2888

General second-rank correlation tensors for homogeneous magnetohydrodynamic turbulence

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EID: 0005835845     PISSN: 1063651X     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevE.56.2875     Document Type: Article
Times cited : (58)

References (51)
  • 11
    • 85040273892 scopus 로고    scopus 로고
    • F. Krause and K.-H. Rädler, Mean-Field Magnetohydrodynamics and Dynamo Theory (Akademie-Verlag, Berlin, 1980)
    • F. Krause and K.-H. Rädler, Mean-Field Magnetohydrodynamics and Dynamo Theory (Akademie-Verlag, Berlin, 1980).
  • 21
    • 85037239741 scopus 로고    scopus 로고
    • permits only limited information about the full correlations to be obtained because it is generally not possible to obtain measurements corresponding to the full range of (Formula presented) (see Sec. VIII)
    • permits only limited information about the full correlations to be obtained because it is generally not possible to obtain measurements corresponding to the full range of (Formula presented) (see Sec. VIII).
  • 29
    • 0004044780 scopus 로고
    • Nijhoff, Dordrecht, The Netherlands
    • M. Lesieur, Turbulence in Fluids (Nijhoff, Dordrecht, The Netherlands, 1990).
    • (1990) Turbulence in Fluids
    • Lesieur, M.1
  • 30
    • 85037196280 scopus 로고    scopus 로고
    • For example, (Formula presented) and (Formula presented)(Formula presented)
    • For example, (Formula presented) and (Formula presented)(Formula presented)
  • 31
    • 85037237942 scopus 로고    scopus 로고
    • See the remark in the paragraph below Eq. (19) for an explanation of the nonequivalence of Eq. (22) and the Fourier transform of Eq. (21)
    • See the remark in the paragraph below Eq. (19) for an explanation of the nonequivalence of Eq. (22) and the Fourier transform of Eq. (21).
  • 33
    • 85037212412 scopus 로고    scopus 로고
    • Some care is necessary here since the notation is dense with “(Formula presented)” functions. Unlike the other (Formula presented)’s, (Formula presented) is not a scalar function associated with the antisymmetric part of a “(Formula presented)” tensor but the cross helicity
    • Some care is necessary here since the notation is dense with “(Formula presented)” functions. Unlike the other (Formula presented)’s, (Formula presented) is not a scalar function associated with the antisymmetric part of a “(Formula presented)” tensor but the cross helicity.
  • 43
    • 85037205584 scopus 로고    scopus 로고
    • This technicality may be sidestepped by working with velocity and magnetic fields whose integrals over all space are bounded, but which differ from the perfectly homogeneous fields only in physically unimportant ways. For example, take (Formula presented) and (Formula presented) to be periodic with very large wavelengths and use Fourier series; alternatively, suppose (Formula presented) and (Formula presented) are zero outside a very large box, permitting use of the standard Fourier integrals. In any case, for our purposes the distinction is unimportant and we hereafter drop the (Formula presented) functions in such equations and use shorthand forms such as (Formula presented)
    • This technicality may be sidestepped by working with velocity and magnetic fields whose integrals over all space are bounded, but which differ from the perfectly homogeneous fields only in physically unimportant ways. For example, take (Formula presented) and (Formula presented) to be periodic with very large wavelengths and use Fourier series; alternatively, suppose (Formula presented) and (Formula presented) are zero outside a very large box, permitting use of the standard Fourier integrals. In any case, for our purposes the distinction is unimportant and we hereafter drop the (Formula presented) functions in such equations and use shorthand forms such as (Formula presented).


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