Abstract
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.
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BRANDENBURG, A. Chandrasekhar–Kendall functions in astrophysical dynamos. Pramana - J Phys 77, 67–76 (2011). https://doi.org/10.1007/s12043-011-0112-5
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DOI: https://doi.org/10.1007/s12043-011-0112-5