Chandrasekhar-Kendall functions in astrophysical dynamos
2011 (English)In: Pramana (Bangalore), ISSN 0304-4289, E-ISSN 0973-7111, Vol. 77, no 1, 67-76 p.Article in journal (Refereed) Published
Some of the contributions of Chandrasekhar to the field of magnetohydrodynamics are highlighted. Particular emphasis is placed on the Chandrasekhar-Kendall functions that allow a decomposition of a vector field into right- and left-handed contributions. Magnetic energy spectra of both contributions are shown for a new set of helically forced simulations at resolutions higher than what has been available so far. For a forcing function with positive helicity, these simulations show a forward cascade of the right-handed contributions to the magnetic field and nonlocal inverse transfer for the left-handed contributions. The speed of inverse transfer is shown to decrease with increasing value of the magnetic Reynolds number.
Place, publisher, year, edition, pages
2011. Vol. 77, no 1, 67-76 p.
Magnetohydrodynamics, dynamos, turbulence
Astronomy, Astrophysics and Cosmology
IdentifiersURN: urn:nbn:se:su:diva-66962ISI: 000293145400007OAI: oai:DiVA.org:su-66962DiVA: diva2:470252
authorCount :12011-12-282011-12-222011-12-28Bibliographically approved