Suppression of turbulent resistivity in turbulent Couette flow
Turbulent transport in rapidly rotating shear flow very efficiently transports angular momentum, a critical feature of instabilities responsible both for the dynamics of accretion disks and the turbulent power dissipation in a centrifuge. Turbulent mixing can efficiently transport other quantities l...
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| Veröffentlicht in: | Physics of plasmas 2015-07, Vol.22 (7) |
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| container_title | Physics of plasmas |
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| creator | Si, Jiahe Colgate, Stirling A. Sonnenfeld, Richard G. Nornberg, Mark D. Li, Hui Colgate, Arthur S. Westpfahl, David J. Romero, Van D. Martinic, Joe |
| description | Turbulent transport in rapidly rotating shear flow very efficiently transports angular momentum, a critical feature of instabilities responsible both for the dynamics of accretion disks and the turbulent power dissipation in a centrifuge. Turbulent mixing can efficiently transport other quantities like heat and even magnetic flux by enhanced diffusion. This enhancement is particularly evident in homogeneous, isotropic turbulent flows of liquid metals. In the New Mexico dynamo experiment, the effective resistivity is measured using both differential rotation and pulsed magnetic field decay to demonstrate that at very high Reynolds number rotating shear flow can be described entirely by mean flow induction with very little contribution from correlated velocity fluctuations. |
| doi_str_mv | 10.1063/1.4926582 |
| format | Article |
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Turbulent mixing can efficiently transport other quantities like heat and even magnetic flux by enhanced diffusion. This enhancement is particularly evident in homogeneous, isotropic turbulent flows of liquid metals. In the New Mexico dynamo experiment, the effective resistivity is measured using both differential rotation and pulsed magnetic field decay to demonstrate that at very high Reynolds number rotating shear flow can be described entirely by mean flow induction with very little contribution from correlated velocity fluctuations.</description><identifier>ISSN: 1070-664X</identifier><identifier>EISSN: 1089-7674</identifier><identifier>DOI: 10.1063/1.4926582</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; ACCRETION DISKS ; ANGULAR MOMENTUM ; CENTRIFUGES ; COUETTE FLOW ; Differential rotation ; Electrical resistivity ; Enhanced diffusion ; FLUCTUATIONS ; Fluid dynamics ; Fluid flow ; High Reynolds number ; INSTABILITY ; LIQUID METALS ; MAGNETIC FIELDS ; MAGNETIC FLUX ; NEW MEXICO ; Plasma physics ; REYNOLDS NUMBER ; ROTATING PLASMA ; Rotation ; SHEAR ; Shear flow ; Transport ; TURBULENT FLOW ; Turbulent mixing ; Variation</subject><ispartof>Physics of plasmas, 2015-07, Vol.22 (7)</ispartof><rights>2015 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c250t-9ff7a8bf0032e9095dba5c255f10f32451ff86b7bc138cf3ef8b07b95d3083063</citedby><cites>FETCH-LOGICAL-c250t-9ff7a8bf0032e9095dba5c255f10f32451ff86b7bc138cf3ef8b07b95d3083063</cites><orcidid>0000-0003-0364-850X ; 0000-0003-1786-4190 ; 0000-0001-8865-1817 ; 0000-0002-1683-2093</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22490968$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Si, Jiahe</creatorcontrib><creatorcontrib>Colgate, Stirling A.</creatorcontrib><creatorcontrib>Sonnenfeld, Richard G.</creatorcontrib><creatorcontrib>Nornberg, Mark D.</creatorcontrib><creatorcontrib>Li, Hui</creatorcontrib><creatorcontrib>Colgate, Arthur S.</creatorcontrib><creatorcontrib>Westpfahl, David J.</creatorcontrib><creatorcontrib>Romero, Van D.</creatorcontrib><creatorcontrib>Martinic, Joe</creatorcontrib><title>Suppression of turbulent resistivity in turbulent Couette flow</title><title>Physics of plasmas</title><description>Turbulent transport in rapidly rotating shear flow very efficiently transports angular momentum, a critical feature of instabilities responsible both for the dynamics of accretion disks and the turbulent power dissipation in a centrifuge. Turbulent mixing can efficiently transport other quantities like heat and even magnetic flux by enhanced diffusion. This enhancement is particularly evident in homogeneous, isotropic turbulent flows of liquid metals. 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| ispartof | Physics of plasmas, 2015-07, Vol.22 (7) |
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| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ACCRETION DISKS ANGULAR MOMENTUM CENTRIFUGES COUETTE FLOW Differential rotation Electrical resistivity Enhanced diffusion FLUCTUATIONS Fluid dynamics Fluid flow High Reynolds number INSTABILITY LIQUID METALS MAGNETIC FIELDS MAGNETIC FLUX NEW MEXICO Plasma physics REYNOLDS NUMBER ROTATING PLASMA Rotation SHEAR Shear flow Transport TURBULENT FLOW Turbulent mixing Variation |
| title | Suppression of turbulent resistivity in turbulent Couette flow |
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