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Prandtl number of toroidal plasmas

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Abstract

Theory of the L-mode confinement in toroidal plasmas is developed. The Prandtl number, the ratio between the ion viscosity and the thermal conductivity is obtained for the anomalous transport process which is caused by the self-sustained turbulence in the toroidal plasma. It is found that the Prandtl number is of order unity both for the ballooning mode turbulence in tokamaks and for the interchange mode turbulence in helical system. The influence on the anomalous transport and fluctuation level is evaluated. Hartmann number and magnetic Prandtl number are also discussed. (author).
Authors:
Publication Date:
Jun 01, 1993
Product Type:
Technical Report
Report Number:
NIFS-234
Reference Number:
SCA: 700310; PA: JPN-93:011208; EDB-94:016540; ERA-19:006026; NTS-94:018177; SN: 93001119424
Resource Relation:
Other Information: PBD: Jun 1993
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; TOKAMAK DEVICES; H-MODE PLASMA CONFINEMENT; PLASMA; CHARGED-PARTICLE TRANSPORT; PRANDTL NUMBER; ANALYTICAL SOLUTION; HARTMANN NUMBER; TURBULENCE; 700310; PLASMA CONFINEMENT
OSTI ID:
10110154
Research Organizations:
National Inst. for Fusion Science, Nagoya (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE94727621; TRN: JP9311208
Availability:
OSTI; NTIS; INIS
Submitting Site:
JPN
Size:
30 p.
Announcement Date:
Jun 30, 2005

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Citation Formats

Itoh, K, Itoh, S, Fukuyama, A, Yagi, M, and Azumi, M. Prandtl number of toroidal plasmas. Japan: N. p., 1993. Web.
Itoh, K, Itoh, S, Fukuyama, A, Yagi, M, & Azumi, M. Prandtl number of toroidal plasmas. Japan.
Itoh, K, Itoh, S, Fukuyama, A, Yagi, M, and Azumi, M. 1993. "Prandtl number of toroidal plasmas." Japan.
@misc{etde_10110154,
title = {Prandtl number of toroidal plasmas}
 author = {Itoh, K, Itoh, S, Fukuyama, A, Yagi, M, and Azumi, M}
 abstractNote = {Theory of the L-mode confinement in toroidal plasmas is developed. The Prandtl number, the ratio between the ion viscosity and the thermal conductivity is obtained for the anomalous transport process which is caused by the self-sustained turbulence in the toroidal plasma. It is found that the Prandtl number is of order unity both for the ballooning mode turbulence in tokamaks and for the interchange mode turbulence in helical system. The influence on the anomalous transport and fluctuation level is evaluated. Hartmann number and magnetic Prandtl number are also discussed. (author).}
 place = {Japan}
 year = {1993}
 month = {Jun}
 }