Velocity of Line Plumes on the Hot Plate in Turbulent Natural Convection

  • Vipin KoothurEmail author
  • Baburaj A. Puthenveettil
Conference paper
Part of the ERCOFTAC Series book series (ERCO, volume 23)


We measure the velocity field in a horizontal field near the hot plate in turbulent convection using stereo PIV for \({10^6<Ra_w<10^9}\) and \({5.2<Pr<4}\). We then extract the line plumes from this velocity field using a divergence criterion using the PIV technique on the obtained plume structures, which gives us the velocity field of the plume motion. The statistical analysis of this velocity field of the plume motion shows the coexistence of two different kinds of motion of the plumes, lateral merging and motion along the plumes.


Velocity Field Rayleigh Number Turbulent Convection Plume Structure Turbulent Natural Convection 
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  1. 1.
    R.J. Adrian, J. Westerweel, Particle Image Velocimetry (Cambridge University Press, New York, 2011)Google Scholar
  2. 2.
    G. Ahlers, S. Grossman, D. Lohse et al., Heat transfer and large scale dynamics in turbulent Rayleigh-Benard convection. Rev. Mod. Phys. 81, 503 (2009)CrossRefGoogle Scholar
  3. 3.
    B. Gebhart, L. Pera, A.W. Schorr, Steady laminar natural convection plume above a horizontal line heat source. Int. J. Heat Mass Transf. 13, 161–171 (1970)CrossRefzbMATHGoogle Scholar
  4. 4.
    G.S. Gunasegarane, B.A. Puthenveettil, Dynamics of line plumes on horizontal surfaces in turbulent convection. J. Fluid Mech. 749, 37–78 (2014)CrossRefGoogle Scholar
  5. 5.
    R.B. Husar, E.M. Sparrow, Patterns of free convection flow adjacent to horizontal heated surfaces. Int. J Heat Mass Transf. 11, 1208–1211 (1968)CrossRefGoogle Scholar
  6. 6.
    J. Jeong, F. Hussain, On the identification of a vortex. J. Fluid Mech. 285, 69–94 (1995)MathSciNetCrossRefzbMATHGoogle Scholar
  7. 7.
    V. Koothur, B.A. Puthenveettil, Horizontal velocity field near the hot plate in turbulent natural convection, in Proceedings of the 14th ACFM, Hanoi-Halong, Vietnam, ISBN: 978-604-913-146-2:90 (2013)Google Scholar
  8. 8.
    B.A. Puthenveettil, J.H. Arakeri, Plume structure in high Rayleigh number convection. J. Fluid Mech. 542, 217–249 (2005)CrossRefzbMATHGoogle Scholar
  9. 9.
    B.A. Puthenveettil, G.S. Gunasegarane, K. Yogesh, D. Schmeling, J. Bosbach, J.H. Arakeri, Length of near wall plumes in turbulent convection. J. Fluid Mech. 685, 335–364 (2011)CrossRefzbMATHGoogle Scholar
  10. 10.
    W.G. Spangenberg, W.G. Rowland, Convection circulation in water induced by evaporative cooling. Phys. Fluids 4(6), 743–750 (1961)CrossRefzbMATHGoogle Scholar
  11. 11.
    S.A. Theerthan, J.H. Arakeri, A model for near wall dynamics in turbulent Rayleigh-Benard convection. J. Fluid Mech. 373, 221–254 (1998)CrossRefzbMATHGoogle Scholar
  12. 12.
    J. Zhou, R.J. Adrian, S. Balachandar, T.M. Kendall, Mechanisms for generating coherent packets of hairpin vortices in channel flow. J. Fluid Mech. 387, 353–396 (1999)MathSciNetCrossRefzbMATHGoogle Scholar
  13. 13.
    G. Zocchi, E. Moses, A. Libchaber, Coherent structures in turbulent convection, an experimental study. Phys. A 166, 387–407 (1990)CrossRefGoogle Scholar

Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  1. 1.Department of Applied MechanicsIndian Institute of Technology MadrasChennaiIndia

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