Dynamic multiscaling in magnetohydrodynamic turbulence.

Ray, Samriddhi Sankar; Sahoo, Ganapati; Pandit, Rahul · Phys Rev E · 2016

basic_science · Level V

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Abstract

We present a study of the multiscaling of time-dependent velocity and magnetic-field structure functions in homogeneous, isotropic magnetohydrodynamic (MHD) turbulence in three dimensions. We generalize the formalism that has been developed for analogous studies of time-dependent structure functions in fluid turbulence to MHD. By carrying out detailed numerical studies of such time-dependent structure functions in a shell model for three-dimensional MHD turbulence, we obtain both equal-time and dynamic scaling exponents.