About: MHD from a Microscopic Concept and Onset of Turbulence in Hartmann Flow

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	We derive higher order magneto-hydrodynamic (MHD) equations from a microscopic picture using projection and perturbation formalism. In an application to Hartmann flow we find velocity profiles flattening towards the center at the onset of turbulence in hydrodynamic limit. Comparison with the system under the effect of a uniform magnetic field yields difference in the onset of turbulence consistent with observations, showing that the presence of magnetic field inhibits onset of instability or turbulence. The laminar-turbulent transition is demonstrated in a phase transition plot of the development in time of the relative average velocities vs. Reynolds number showing a sharp increase of the relative average velocity at the transition point as determined by the critical Reynolds number. We derive higher order magneto-hydrodynamic (MHD) equations from a microscopic picture using projection and perturbation formalism. In an application to Hartmann flow we find velocity profiles flattening towards the center at the onset of turbulence in hydrodynamic limit. Comparison with the system under the effect of a uniform magnetic field yields difference in the onset of turbulence consistent with observations, showing that the presence of magnetic field inhibits onset of instability or turbulence. The laminar-turbulent transition is demonstrated in a phase transition plot of the development in time of the relative average velocities vs. Reynolds number showing a sharp increase of the relative average velocity at the transition point as determined by the critical Reynolds number. (en)
Title	MHD from a Microscopic Concept and Onset of Turbulence in Hartmann Flow MHD from a Microscopic Concept and Onset of Turbulence in Hartmann Flow (en)
skos:prefLabel	MHD from a Microscopic Concept and Onset of Turbulence in Hartmann Flow MHD from a Microscopic Concept and Onset of Turbulence in Hartmann Flow (en)
skos:notation	RIV/44555601:13520/10:00006089!RIV11-MSM-13520___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1M0554)
http://linked.open...iv/cisloPeriodika	3
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Jirkovský, Luděk
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	Univerzita Jana Evangelisty Purkyně v Ústí nad Labem / Fakulta životního prostředí
http://linked.open...dnocenehoVysledku	271178
http://linked.open...ai/riv/idVysledku	RIV/44555601:13520/10:00006089
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	projection techniques; onset of turbulence; MHD; Hartmann flow (en)
http://linked.open.../riv/klicoveSlovo	MHD Hartmann flow onset of turbulence projection techniques
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[B1EE77730C0F]
http://linked.open...i/riv/nazevZdroje	Communications in theoretical physics
http://linked.open...in/vavai/riv/obor	BE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Advanced Remedial Technologies and Processes
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	53
http://linked.open...iv/tvurceVysledku	Jirkovský, Luděk Bo-Ot, Luis Chiang, C.
http://linked.open...ain/vavai/riv/wos	000275683300034
issn	0253-6102
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	13520

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