000013869 001__ 13869
000013869 005__ 20161115094004.0
000013869 04107 $$aeng
000013869 046__ $$k2016-08-21
000013869 100__ $$aKozlov, Victor
000013869 24500 $$aSteady thermal convection in a rotating horizontal annulus

000013869 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000013869 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000013869 506__ $$arestricted
000013869 520__ $$2eng$$aWe study theoretically and experimentally the thermal convection of liquid in a quickly rotating horizontal annulus with isothermal boundaries of different temperatures. Experiments show that the convection manifests itself in a threshold excitation of two-dimensional vortexes parallel to the cavity axis in both cases, when heating from inside and outside. It is demonstrated that the convection is determined by two mechanisms, centrifugal and “thermovrbrational”. The last one appears due to a mean effect of oscillations of nonisothermal liquid in the cavity frame caused by gravity. We present the results of the linear stability analysis and nonlinear numerical simulation based on the equations of a thermovibrational convection obtained by the method of averaging. Experimental and theoretical results match up on a plane of the governing dimensionless parameters, centrifugal Rayleigh number and vibrational parameter.

000013869 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000013869 653__ $$a

000013869 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000013869 720__ $$aKozlov, Victor
000013869 8560_ $$ffischerc@itam.cas.cz
000013869 8564_ $$s188792$$uhttps://invenio.itam.cas.cz/record/13869/files/PO.FM05-1.04.17.pdf$$yOriginal version of the author's contribution as presented on CD, XMLout( page 753, code PO.FM05-1.04.17).
000013869 962__ $$r13812
000013869 980__ $$aPAPER