title: Continuum self-organized-criticality model of turbulent heat transport in tokamaks.
abstract: A simple generic one-dimensional continuum model of driven dissipative systems is proposed to explain self-organized bursty heat transport in tokamaks. Extensive numerical simulations of this model reproduce many features of present day tokamaks such as submarginal temperature profiles, intermittent transport events, 1/f scaling of the frequency spectra, propagating fronts, etc. This model utilizes a minimal set of phenomenological parameters, which may be determined from experiments and/or simulations. Analytical and physical understanding of the observed features has also been attempted.
authors.affiliation: Institute for Plasma Research, Bhat, Gandhinagar 382428, India.
authors.forename: Varun
authors.initials: V
authors.lastname: Tangri
authors.forename: Amita
authors.initials: A
authors.lastname: Das
authors.forename: Predhiman
authors.initials: P
authors.lastname: Kaw
authors.forename: Raghvendra
authors.initials: R
authors.lastname: Singh