Critical fluctuation of wind reversals in convective turbulence

Rudolph C. Hwa, C. B. Yang, S. Bershadskii, J. J. Niemela, K. R. Sreenivasan

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish (US)
Article number066308
JournalPhysical Review E
Volume72
Issue number6
DOIs
StatePublished - Dec 2005

Fingerprint

Reversal
Turbulence
turbulence
Fluctuations
Ising
wind direction
Self-organized Criticality
tuning
Parameter Tuning
Scaling Behavior
Critical Behavior
intervals
scaling
Magnetization
magnetization
Irregular
Time series
Interval

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics
  • Mathematical Physics

Cite this

Critical fluctuation of wind reversals in convective turbulence. / Hwa, Rudolph C.; Yang, C. B.; Bershadskii, S.; Niemela, J. J.; Sreenivasan, K. R.

In: Physical Review E, Vol. 72, No. 6, 066308, 12.2005.

Research output: Contribution to journalArticle

Hwa, Rudolph C. ; Yang, C. B. ; Bershadskii, S. ; Niemela, J. J. ; Sreenivasan, K. R. / Critical fluctuation of wind reversals in convective turbulence. In: Physical Review E. 2005 ; Vol. 72, No. 6.
@article{2b877ebe4aef43a49a57db079f3dd445,
title = "Critical fluctuation of wind reversals in convective turbulence",
abstract = "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.",
author = "Hwa, {Rudolph C.} and Yang, {C. B.} and S. Bershadskii and Niemela, {J. J.} and Sreenivasan, {K. R.}",
year = "2005",
month = "12",
doi = "10.1103/PhysRevE.72.066308",
language = "English (US)",
volume = "72",
journal = "Physical Review E - Statistical, Nonlinear, and Soft Matter Physics",
issn = "1539-3755",
publisher = "American Physical Society",
number = "6",

}

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.

UR - http://www.scopus.com/inward/record.url?scp=33244493060&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33244493060&partnerID=8YFLogxK

U2 - 10.1103/PhysRevE.72.066308

DO - 10.1103/PhysRevE.72.066308

M3 - Article

VL - 72

JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

SN - 1539-3755

IS - 6

M1 - 066308

ER -