Effect of Periodic Bottom Plate Heating on Large Scale Flow in Turbulent Rayleigh-Bénard Convection

Effect of Periodic Bottom Plate Heating on Large Scale Flow in Turbulent Rayleigh-Bénard Convection

We report analysis of temperature fluctuations measured inside a Rayleigh-Bénard convection cell of aspect ratio unity with steady and time-varying heating of the bottom boundary. The working fluid is cryogenic helium gas at Rayleigh number Ra = 1013, for which a large scale coherent flow (mean wind...

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Bibliographic Details
Main Authors: Margarita Kuqali, Simone Babuin, Joseph Niemela
Format: Article
Language:English
Published: Isfahan University of Technology 2015-01-01
Series:Journal of Applied Fluid Mechanics
Subjects:
Modulated heat; Turbulence; Temperature fluctuations.
Online Access:http://jafmonline.net/JournalArchive/download?file_ID=36942&issue_ID=222

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