Measured Local Heat Transport in Turbulent Rayleigh-B\'enard Convection

Measured Local Heat Transport in Turbulent Rayleigh-Bénard Convection

X.-D. Shang, X.-L. Qiu, P. Tong, and K.-Q. Xia

Phys. Rev. Lett. 90, 074501 – Published 20 February 2003

Abstract

Local convective heat flux in turbulent thermal convection is obtained from simultaneous velocity and temperature measurements in an aspect-ratio-one convection cell filled with water. It is found that fluctuations of the vertical heat flux are highly intermittent and are determined primarily by the thermal plumes in the system. The experiment reveals a unique mechanism for the heat transport in turbulent convection.

Received 19 September 2002

DOI:https://doi.org/10.1103/PhysRevLett.90.074501

Authors & Affiliations

X.-D. Shang¹, X.-L. Qiu², P. Tong², and K.-Q. Xia¹

¹Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong, China
²Department of Physics, Oklahoma State University, Stillwater, Oklahoma 74078

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Vol. 90, Iss. 7 — 21 February 2003

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Physical Review Letters

Measured Local Heat Transport in Turbulent Rayleigh-Bénard Convection

X.-D. Shang, X.-L. Qiu, P. Tong, and K.-Q. Xia

Phys. Rev. Lett. 90, 074501 – Published 20 February 2003

Abstract

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