000014505 001__ 14505
000014505 005__ 20161115100153.0
000014505 04107 $$aeng
000014505 046__ $$k2016-08-21
000014505 100__ $$aZhong, Jin-Qiang
000014505 24500 $$aThe large-scale circulation dynamics in rotating Rayleigh-Benard convection (INVITED)

000014505 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014505 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014505 506__ $$arestricted
000014505 520__ $$2eng$$aIn this talk I will present new experimental measurements of the large-scale circulation (LSC) dynamics in rotating Rayleigh-Bénard convection. In cylindrical samples we probe the angular orientation ș and the flow strength į of the LSC, through measurements of the azimuthal fluid temperature profile. We report linear retrograde precession of ș driven by constant Coriolis force in an unprecedented large Rossby number range (10İRoİ314). Enhanced precession speed is observed when Roı70 that is ascribed to stochastic cessation dynamics. A New oscillatory state of the LSC appears when the flow is subjected to modulated rotations. Both ș and į exhibit periodic oscillations in the modulation frequency. We present a LSC model that predicts accurately the oscillation amplitudes and phases.

000014505 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014505 653__ $$a

000014505 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014505 720__ $$aZhong, Jin-Qiang
000014505 8560_ $$ffischerc@itam.cas.cz
000014505 8564_ $$s184216$$uhttps://invenio.itam.cas.cz/record/14505/files/TS.FM05-1.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 715, code TS.FM05-1.04
.
000014505 962__ $$r13812
000014505 980__ $$aPAPER