Reduction of boundary effects in spiral MRI experiment PROMISE

dc.creatorSzklarski, J.
dc.date2007-04-18
dc.date2007-05-21
dc.date.accessioned2026-07-07T08:02:11Z
dc.date.available2026-07-07T08:02:11Z
dc.descriptionMagnetorotational instability (MRI) is one of the most important and most common instabilities in astrophysics, it is widely accepted that it serves as a source of turbulent viscosity in accretion disks -- the most energy efficient objects in the Universe. However it is very difficult to bring this process down on earth and model it in a laboratory experiment. Several different approaches have been proposed, one of the most recent is PROMISE (Potsdam-ROssendorf Magnetorotational InStability Experiment). It consists of a flow of a liquid metal between two rotating cylinders under applied current-free spiral magnetic field. The cylinders must be covered with plates which introduce additional end-effects which alter the flow and make it more difficult to clearly distinguish between MRI stable and unstable state. In this paper we propose simple and inexpensive improvement to the PROMISE experiment which would reduce those undesirable effects.
dc.description8 pages, 9 figures. Accepted to AN
dc.identifierhttps://arxiv.org/abs/0704.2320
dc.identifierhttp://arxiv.org/abs/0704.2320
dc.identifierAstron.Nachr. 328 (2007) 499
dc.identifierdoi:10.1002/asna.200710774
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129149
dc.subjectAstrophysics
dc.titleReduction of boundary effects in spiral MRI experiment PROMISE
dc.typetext

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