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Magnetically assisted vorticity production in decaying acoustic turbulence
Axel Brandenburg, Evan Scannapieco
We study vorticity production in isothermal, subsonic, acoustic (nonvortical), and decaying turbulence due to the presence of magnetic fields. Using three-dimensional numerical sim…
Theory of the kinetic helicity effect on turbulent diffusion of magnetic and scalar fields
Igor Rogachevskii, Nathan Kleeorin, Axel Brandenburg
Kinetic helicity is a fundamental characteristics of astrophysical turbulent flows. It is not only responsible for the generation of large-scale magnetic fields in the Sun, stars,…
Helicity effect on turbulent passive and active scalar diffusivities
Axel Brandenburg, Petri J. Käpylä, Igor Rogachevskii +1
Turbulent flows are known to produce enhanced effective magnetic and passive scalar diffusivities, which can fairly accurately be determined with numerical methods. It is now known…
Energetics of turbulence generated by chiral MHD dynamos
Jennifer Schober, Axel Brandenburg, Igor Rogachevskii +1
An asymmetry in the number density of left- and right-handed fermions is known to give rise to a new term in the induction equation that can result in a dynamo instability. At high…