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Title: Magnetorotational Instability in a Rotating Liquid Metal Annulus

Abstract

Although the magnetorotational instability (MRI) has been widely accepted as a powerful accretion mechanism in magnetized accretion disks, it has not been realized in the laboratory. The possibility of studying MRI in a rotating liquid-metal annulus (Couette flow) is explored by local and global stability analysis and magnetohydrodynamic (MHD) simulations. Stability diagrams are drawn in dimensionless parameters, and also in terms of the angular velocities at the inner and outer cylinders. It is shown that MRI can be triggered in a moderately rapidly rotating table-top apparatus, using easy-to-handle metals such as gallium. Practical issues of this proposed experiment are discussed.

Authors:
; ;
Publication Date:
Research Org.:
Princeton Plasma Physics Lab., NJ (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
780617
Report Number(s):
PPPL-3548
TRN: US0102481
DOE Contract Number:  
AC02-76CH03073
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 10 Mar 2001
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ACCRETION DISKS; GALLIUM; INSTABILITY; LIQUID METALS; MAGNETOHYDRODYNAMICS; ROTATION; COUETTE FLOW

Citation Formats

Hantao Ji, Jeremy Goodman, and Akira Kageyama. Magnetorotational Instability in a Rotating Liquid Metal Annulus. United States: N. p., 2001. Web. doi:10.2172/780617.
Hantao Ji, Jeremy Goodman, & Akira Kageyama. Magnetorotational Instability in a Rotating Liquid Metal Annulus. United States. doi:10.2172/780617.
Hantao Ji, Jeremy Goodman, and Akira Kageyama. Sat . "Magnetorotational Instability in a Rotating Liquid Metal Annulus". United States. doi:10.2172/780617. https://www.osti.gov/servlets/purl/780617.
@article{osti_780617,
title = {Magnetorotational Instability in a Rotating Liquid Metal Annulus},
author = {Hantao Ji and Jeremy Goodman and Akira Kageyama},
abstractNote = {Although the magnetorotational instability (MRI) has been widely accepted as a powerful accretion mechanism in magnetized accretion disks, it has not been realized in the laboratory. The possibility of studying MRI in a rotating liquid-metal annulus (Couette flow) is explored by local and global stability analysis and magnetohydrodynamic (MHD) simulations. Stability diagrams are drawn in dimensionless parameters, and also in terms of the angular velocities at the inner and outer cylinders. It is shown that MRI can be triggered in a moderately rapidly rotating table-top apparatus, using easy-to-handle metals such as gallium. Practical issues of this proposed experiment are discussed.},
doi = {10.2172/780617},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Mar 10 00:00:00 EST 2001},
month = {Sat Mar 10 00:00:00 EST 2001}
}

Technical Report:

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