Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session B46: Turbulence, Instabilities, Pattern Formation and Nonlinear Dynamics
11:15 AM–2:15 PM,
Monday, March 5, 2018
LACC Room: 506
Sponsoring Units: DFD GSNP
Chair: Peter Monkewitz, Swiss Fed Inst Tech
Abstract: B46.00013 : The characterization of the interaction between two convection rolls from two cubic containers
1:39 PM–1:51 PM
We present characterization of the large-scale circulations (LSCs) of turbulent Rayleigh- Bénard convection in two cubic cells. The two cells are connected through a half-open shared wall. We found two states when changing the tilting angle: counter rotating when the tilting angle is small, co-rotating when the tilting angle is big. We also looked at the strength of LSCs at different states, and we found the discontinuity in the strength VS tilting angle measurement for the LSC that switched the orientation. We are testing whether an extended stochastic model based on Brown and Ahlers (Phys. Fluids, 2008) can describe the observed behaviors.
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