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Author(s):
A. Yoshizawa, N. Yokoi, S.-I Itoh and K. Itoh
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Title:
Mean-Field Theory and Self-Consistent Dynamo Modeling
Date of publication:
Dec. 2001
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Key words:
turbulent dynamo, magnetohydrodynamics, turbulent theory, planetary magnetic fields, flow dynamo
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Abstract:
Mean-field theory of dynamo is discussed with emphasis on the statistical formulation of turbulence effects on the magnetohydrodynamic equations and the construction of a self-consistent dynamo model. The dynamo mechanism is sought in the combination of the turbulent residual-helicity and cross-helicity effects. On the basis of this mechanism, discussions are made on the generation of planetary magnetic fields such as geomagnetic field and sunspots and on the occurrence of flow by magnetic fields in planetary and fusion phenomena.
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