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Role of compressibility on driven magnetic reconnection

Technical Report:

Abstract

Whether it is induced by an ideal (current driven) instability or by an external force, plasma flow causes a change in the magnetic field configuration and often gives rise to a current intensification locally, thereby a fast driven reconnection being driven there. Many dramatic phenomena in magnetically confined plasmas such as magnetospheric substorms, solar flares, MHD self-organization and tokamak sawtooth crash, may be attributed to this fast driven reconnection. Using a fourth order MHD simulation code it is confirmed that compressibility of the plasma plays a crucial role in leading to a fast (MHD time scale) driven reconnection. This indicates that the incompressible representation is not always applicable to the study of a global dynamical behavior of a magnetically confined plasma. (author).
Publication Date:
Aug 01, 1991
Product Type:
Technical Report
Report Number:
NIFS-105
Reference Number:
SCA: 700330; PA: JPN-91:012194; SN: 92000659228
Resource Relation:
Other Information: PBD: Aug 1991
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; MAGNETIC RECONNECTION; COMPRESSIBILITY; PLASMA CONFINEMENT; PLASMA EXPANSION; MAGNETOHYDRODYNAMICS; PLASMA; MAGNETIC FIELDS; COMPUTERIZED SIMULATION; 700330; PLASMA KINETICS, TRANSPORT, AND IMPURITIES
OSTI ID:
10117095
Research Organizations:
National Inst. for Fusion Science, Nagoya (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE92768116; TRN: JP9112194
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
JPN
Size:
33 p.
Announcement Date:
Jun 30, 2005

Technical Report:

Citation Formats

Sato, T, Hayashi, T, Watanabe, K, Horiuchi, R, Tanaka, M, Sawairi, N, and Kusano, K. Role of compressibility on driven magnetic reconnection. Japan: N. p., 1991. Web.
Sato, T, Hayashi, T, Watanabe, K, Horiuchi, R, Tanaka, M, Sawairi, N, & Kusano, K. Role of compressibility on driven magnetic reconnection. Japan.
Sato, T, Hayashi, T, Watanabe, K, Horiuchi, R, Tanaka, M, Sawairi, N, and Kusano, K. 1991. "Role of compressibility on driven magnetic reconnection." Japan.
@misc{etde_10117095,
title = {Role of compressibility on driven magnetic reconnection}
author = {Sato, T, Hayashi, T, Watanabe, K, Horiuchi, R, Tanaka, M, Sawairi, N, and Kusano, K}
abstractNote = {Whether it is induced by an ideal (current driven) instability or by an external force, plasma flow causes a change in the magnetic field configuration and often gives rise to a current intensification locally, thereby a fast driven reconnection being driven there. Many dramatic phenomena in magnetically confined plasmas such as magnetospheric substorms, solar flares, MHD self-organization and tokamak sawtooth crash, may be attributed to this fast driven reconnection. Using a fourth order MHD simulation code it is confirmed that compressibility of the plasma plays a crucial role in leading to a fast (MHD time scale) driven reconnection. This indicates that the incompressible representation is not always applicable to the study of a global dynamical behavior of a magnetically confined plasma. (author).}
place = {Japan}
year = {1991}
month = {Aug}
}