About: Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Dokázali jsme, že integrály přes úhel stoupání trajektorie ve vzorcích pro transportní toky v ν-režimu neoklasického transportu, popsané Shaingem v [Phys. Plasmas 10, 1443 (2003)], jsou divergentní v okolí hranice mezi zachycenými a obíhajícími orbitami. (ν je srážková frekvence.) Původ této divergence je v logaritmické závislosti radiální driftové rychlosti ustředněné přes odrazy. Analýza srážkové hraniční vrstvy je provedena pro odstranění této singularity. Výsledné integrály přes úhel stoupání nyní zahrnují nejen původní fyziku ν-režimu, ale i fyziku hraniční vrstvy. Transportní toky způsobené částicemi v hraniční vrstvě se škálují jako ν. (cs) It is demonstrated that the pitch angle integrals in the transport fluxes in the ν regime calculated in K. C. Shang [Phys. Plasmas 10, 1443 (2003)] are divergent as the trapped-circulating boundary is approached. Here, ν is the collision frequency. The origin of this divergence results from the logarithmic dependence in the bounce averaged radial drift velocity. A collisional boundary layer analysis is developed to remove the singularity. The resultant pitch angle integrals now include not only the original physics of the ν regime but also the boundary layer physics. The transport fluxes, caused by the particles inside the boundary layer, scale as ν. It is demonstrated that the pitch angle integrals in the transport fluxes in the ν regime calculated in K. C. Shang [Phys. Plasmas 10, 1443 (2003)] are divergent as the trapped-circulating boundary is approached. Here, ν is the collision frequency. The origin of this divergence results from the logarithmic dependence in the bounce averaged radial drift velocity. A collisional boundary layer analysis is developed to remove the singularity. The resultant pitch angle integrals now include not only the original physics of the ν regime but also the boundary layer physics. The transport fluxes, caused by the particles inside the boundary layer, scale as ν. (en)
Title	Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks Analýza srážkové hraniční vrstvy pro neoklasickou toroidální viskozitu v tokamacích (cs) Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks (en)
skos:prefLabel	Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks Analýza srážkové hraniční vrstvy pro neoklasickou toroidální viskozitu v tokamacích (cs) Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks (en)
skos:notation	RIV/61389021:_____/08:00319781!RIV09-AV0-61389021
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z20430508)
http://linked.open...iv/cisloPeriodika	8
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Cahyna, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky plazmatu AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	360359
http://linked.open...ai/riv/idVysledku	RIV/61389021:_____/08:00319781
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	plasma boundary layers; plasma toroidal confinement; Tokamak devices (en)
http://linked.open.../riv/klicoveSlovo	plasma toroidal confinement plasma boundary layers Tokamak devices
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[2DED35196E52]
http://linked.open...i/riv/nazevZdroje	Physics of Plasmas
http://linked.open...in/vavai/riv/obor	BL
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	15
http://linked.open...iv/tvurceVysledku	Cahyna, Pavel Bécoulet, M. Sabbagh, S. A. Chu, M. S. Park, J.-K. Shaing, K. C.
http://linked.open...ain/vavai/riv/wos	000259448900044
http://linked.open...n/vavai/riv/zamer	Physical and chemical processes in plasmas and theis applications
issn	1070-664X
number of pages	14 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks Collisional boundary layer analysis for neoclassical toroidal plasma viscosity in tokamaks

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