000014511 001__ 14511
000014511 005__ 20161115100153.0
000014511 04107 $$aeng
000014511 046__ $$k2016-08-21
000014511 100__ $$aTilgner, Andreas
000014511 24500 $$aHigh Rayleigh number convection with double diffusive fingers

000014511 24630 $$n24.$$p24th International Congress of Theoretical and Applied Mechanics - Book of Papers
000014511 260__ $$bInternational Union of Theoretical and Applied Mechanics, 2016
000014511 506__ $$arestricted
000014511 520__ $$2eng$$aRayleigh-B´enard convection experiments observe a large scale circulation up to the highest Rayleigh numbers accessible to experiments. Here, it is shown that this organization at large scales is disrupted by a relatively small perturbation in double diffusive convection. Experiments reported here show that the large scale circulation disappears in favor of double diffusive fingers even if the total density stratification is unstable and the buoyancy introduced by the stabilizing agent is two orders of magnitude smaller than the buoyancy force due to the destabilizing agent. Another spectacular change in the large scale flow pattern occurs if the flow splits into several layers stacked upon each other. This is observed in the oceans, and this effect has been reproduced in our experiments.

000014511 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000014511 653__ $$a

000014511 7112_ $$a24th International Congress of Theoretical and Applied Mechanics$$cMontreal (CA)$$d2016-08-21 / 2016-08-26$$gICTAM2016
000014511 720__ $$aTilgner, Andreas
000014511 8560_ $$ffischerc@itam.cas.cz
000014511 8564_ $$s138802$$uhttps://invenio.itam.cas.cz/record/14511/files/TS.FM05-2.04.pdf$$yOriginal version of the author's contribution as presented on CD,  page 727, code TS.FM05-2.04
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000014511 962__ $$r13812
000014511 980__ $$aPAPER