NDLI: On the reconstruction of nonlocal heat transport parameters from observed phenomena of the fast non-diffusive transport in a tokamak

Content Provider	IEEE Xplore Digital Library
Author	Kukushkin, A.B.
Copyright Year	1997
Description	Author affiliation: Kurchatov (I.V.) Inst. of Atomic Energy, Moscow, Russia (Kukushkin, A.B.)
Abstract	Summary form only given, as follows. A physics model for the nonlocal heat transport by long mean-free-path plasma waves-of the order and much larger than plasma characteristic size-and the respective formalism of an integral equation, in space variables, are shown to provide universal explanation of major features of recently observed phenomena of the fast non-diffusive heat transport in a tokamak, which being interpreted in formalisms of diffusion-like, differential equations give instant jumps of thermal diffusivities in a large part of plasma volume. The inverse problem is formulated for reconstructing the parameters of nonlocal component of anomalous cross-field energy transport, and the results of numerical modeling are presented for initial stage of the following phenomena: (i) net inward flux of energy during off-axis heating; (ii) prompt rise/drop of electron temperature in the core in experiments on fast cooling/heating of the periphery; (iii) fast "volumetric" response of energy transport to plasma edge behavior during L-H transitions.
File Size	102129
File Format	PDF
ISBN	0780339908
ISSN	07309244
DOI	10.1109/PLASMA.1997.605001
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-05-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Plasma transport processes Space heating Plasma temperature Plasma properties Plasma waves Physics Integral equations Extraterrestrial phenomena Tokamaks Differential equations
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Electrical and Electronic Engineering

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