TY - JOUR
T1 - Critical fluctuation of wind reversals in convective turbulence
AU - Hwa, Rudolph C.
AU - Yang, C. B.
AU - Bershadskii, S.
AU - Niemela, J. J.
AU - Sreenivasan, K. R.
PY - 2005/12
Y1 - 2005/12
N2 - The irregular reversals of wind direction in convective turbulence are found to have fluctuating intervals that can be related, under certain circumstances, to critical behavior. In particular, by focusing on its temporal evolution, the net magnetization of a two-dimensional Ising lattice of finite size is observed to fluctuate in the same way. Detrended fluctuation analysis of the wind reversal time series results in a scaling behavior that agrees remarkably well with that of the Ising problem. The specific properties found here, as well as the lack of an external tuning parameter, also suggest that the wind reversal phenomenon exhibits signs of self-organized criticality.
AB - The irregular reversals of wind direction in convective turbulence are found to have fluctuating intervals that can be related, under certain circumstances, to critical behavior. In particular, by focusing on its temporal evolution, the net magnetization of a two-dimensional Ising lattice of finite size is observed to fluctuate in the same way. Detrended fluctuation analysis of the wind reversal time series results in a scaling behavior that agrees remarkably well with that of the Ising problem. The specific properties found here, as well as the lack of an external tuning parameter, also suggest that the wind reversal phenomenon exhibits signs of self-organized criticality.
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U2 - 10.1103/PhysRevE.72.066308
DO - 10.1103/PhysRevE.72.066308
M3 - Article
AN - SCOPUS:33244493060
SN - 1539-3755
VL - 72
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 6
M1 - 066308
ER -