Thermal imaging studies of the laminar-turbulent transition in the Rayleigh-Benard convection

Thermal imaging studies of the laminar-turbulent transition in the Rayleigh-Benard convection

Flows in horizontal fluid layers with a free upper boundary with uniform heating from below are studied. With the use of thermal imaging scanning, the temperature fields on the free fluid surface in laminar and turbulent regimes of the Rayleigh-Benard convection are measured. Computer processing of...

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Veröffentlicht in:Optoelectronics, instrumentation, and data processing instrumentation, and data processing, 2012-05, Vol.48 (3), p.311-318
Hauptverfasser: Berdnikov, V. S., Grishkov, V. A., Kovalevskii, K. Yu, Markov, V. A.
Format: Artikel
Sprache:eng
Schlagworte:
Lasers
Optical Devices
Optical Information Technologies
Optics
Photonics
Physics
Physics and Astronomy
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Zusammenfassung:Flows in horizontal fluid layers with a free upper boundary with uniform heating from below are studied. With the use of thermal imaging scanning, the temperature fields on the free fluid surface in laminar and turbulent regimes of the Rayleigh-Benard convection are measured. Computer processing of thermal imaging movies makes it possible to obtain spatial-temporal characteristics of cellular and multiscale convective flows.
ISSN:8756-6990
1934-7944
DOI:10.3103/S8756699012030144