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Velociety oscillations in turbulent rayleigh-benard convection

Authors Qiu, X.L.
Shang, X.D.
Tong, Penger
Xia, K.Q.
Issue Date 2003
Summary A systematic study of velocity oscillations in turbulent thermal convection is carried out in small aspect-ratio cells filled with water. Local velocity fluctuations and temperature-velocity cross-correlation functions are measured over varying Rayleigh numbers and spatial positions across the entire convection cell. These structural measurements reveal how the thermal plumes interact with the bulk fluid in a closed cell and provide an interesting physical picture for the dynamics of the temperature and velocity oscillations in turbulent convection. PACS numbers: 47.27.-i, 44.25.+f, 05.40.-a.
Language English
Format Preprint
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