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Sawtooth repetition time scaling from reduced MHD simulations: Comparison with FT experiment

Technical Report:

Abstract

The proposed scaling of the sawtooth repetition time for ohmic discharges was obtained by reduced magnetohydrodynamic (MHD) equation simulations together with a simple profile consistent transport model. The choice of a profile consistent perpendicular thermal diffusion coefficient allowed the obtaining of the scaling of the sawtooth repetition time in terms of the diffusion coefficients and edge safety factor (q/sub a/), thus generalizing the scaling given by Vlad and Bondeson (Nucl. Fusion 29, 1139 (1989)). The scaling was in excellent agreement with the ohmic results of the Frascati Tokamak (FT).
Publication Date:
Sep 01, 1991
Product Type:
Technical Report
Report Number:
ENEA-RT-NUCL-90-29; RT/NUCL-90-29
Reference Number:
SCA: 700340; PA: ITAN-91:002107; SN: 92000621842
Resource Relation:
Other Information: PBD: Sep 1991
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; FT TOKAMAK; SAWTOOTH OSCILLATIONS; PLASMA SIMULATION; SCALING LAWS; MAGNETOHYDRODYNAMICS; PLASMA FLUID EQUATIONS; NEOCLASSICAL TRANSPORT THEORY; JOULE HEATING; EDGE LOCALIZED MODES; VALIDATION; 700340; PLASMA WAVES, OSCILLATIONS, AND INSTABILITIES
OSTI ID:
10107688
Research Organizations:
ENEA, Frascati (Italy). Area Nucleare
Country of Origin:
Italy
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 1120-5598; Other: ON: DE92744033; TRN: 91:002107
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
ITAN
Size:
16 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Vlad, G, Bracco, G, and Buratti, P. Sawtooth repetition time scaling from reduced MHD simulations: Comparison with FT experiment. Italy: N. p., 1991. Web.
Vlad, G, Bracco, G, & Buratti, P. Sawtooth repetition time scaling from reduced MHD simulations: Comparison with FT experiment. Italy.
Vlad, G, Bracco, G, and Buratti, P. 1991. "Sawtooth repetition time scaling from reduced MHD simulations: Comparison with FT experiment." Italy.
@misc{etde_10107688,
title = {Sawtooth repetition time scaling from reduced MHD simulations: Comparison with FT experiment}
author = {Vlad, G, Bracco, G, and Buratti, P}
abstractNote = {The proposed scaling of the sawtooth repetition time for ohmic discharges was obtained by reduced magnetohydrodynamic (MHD) equation simulations together with a simple profile consistent transport model. The choice of a profile consistent perpendicular thermal diffusion coefficient allowed the obtaining of the scaling of the sawtooth repetition time in terms of the diffusion coefficients and edge safety factor (q/sub a/), thus generalizing the scaling given by Vlad and Bondeson (Nucl. Fusion 29, 1139 (1989)). The scaling was in excellent agreement with the ohmic results of the Frascati Tokamak (FT).}
place = {Italy}
year = {1991}
month = {Sep}
}