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On the magnetohydrodynamic load and the magnetohydrodynamic metage

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/1.2836617· OSTI ID:21069952
 [1];  [1]
  1. S. N. Bose National Centre for Basic Sciences, Saltlake, Kolkata 700098 (India)
In analogy with the load and the metage in hydrodynamics, this paper defines magnetohydrodynamic load and magnetohydrodynamic metage in the case of magnetofluids. They can be used to write the magnetic field in MHD in Clebsch's form. It has been shown herein how these two concepts can be utilized to derive the magnetic analog of the Ertel's theorem and also, how in the presence of nontrivial topology of the magnetic field in the magnetofluid one may associate the linking number of the magnetic field lines with the invariant MHD loads. The paper illustrates that the symmetry translation of the MHD metage in the corresponding label space generates the conservation of cross helicity.
OSTI ID:
21069952
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 1 Vol. 15; ISSN PHPAEN; ISSN 1070-664X
Country of Publication:
United States
Language:
English

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