An Application of the Modified Cumulant Expansion to the Transition from Three-to Two-Dimensional Turbulence under a Uniform Magnetic Field

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概要

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• The energy spectrum equation of homogeneotts axisymmetric turbulence fora conducting incompressible fluid under an imposed uniform magnetic field, B,),is formulated by using the modified zero-4th-cumulant approximation. Since themagnetic Reynolds number is assumed to be small, the induced magnetic field,b, around B. can be calculated by a quasi-static approximation.Numerical calculations are made by assuming an initially isotropic state at theintegral-length-scale Reynolds number 7?.=60. Results slaow that the largeimposed magnetic field, B,., makes the turbulent field in the plane (A?J(,)=0 (Ais wavevector) behave as expected from the theories of two-dimensional turbulence.

• 社団法人日本物理学会の論文
• 1985-09-15

著者

• Nakauchi Norihiko

  Department Of General Education Faculty Of Medical Science University Of Toho

関連論文

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• An Application of the Modified 0-4th-Cumulant Approximation to Homogeneous Axisymmetric Temperature Fluctuations in an Isotropic Turbulence with a Mean Temperature Gradient
• An Application of the Modified Cumulant Expansion to the Transition from Three-to Two-Dimensional Turbulence under a Uniform Magnetic Field
• An Application of the Modified Zero-Fourth-Cumulant Approximation to Homogeneous Axisymmetric Turbulence
• An Application of the Modified Zero-Fourth -Cumulant Approximation to Homogeneous Axisymmetric Boussinesq Turbulence

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