The paper presents the experimental study of thermo- and solutocapillary Marangoni convection around a gas bubble in an inhomogeneous fluid with a vertical thermal or surfactant concentration gradient. The stationary bubble in the form of a short horizontal cylinder with a free lateral surface was placed into a vertically oriented thin liquid layer (Hele-Shaw cell). The evolution of thermal and concentration fields and fluid flows was studied applying the interferometric method. In contrast to a thermocapillary convection representing a stationary flow and stable temperature distribution, the periodic concentration disturbances around the bubble were observed in the solutocapillary case. The regularities of the discovered effect were revealed, and its interpretation was proposed.
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e-mail: Antonio.viviani@unina2.it
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January 2006
Technical Papers
Thermal and Concentrational Maragoni Convection at Liquid∕Air Bubble Interface
Konstantin Kostarev,
Konstantin Kostarev
Institute of Continuous Media Mechanics UB RAS
, Acad Korelev Str. 1, 614013 Perm, Russia
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Antonio Viviani,
Antonio Viviani
Dipartimento di Ingegneria Aerospaziale e Meccanica,
e-mail: Antonio.viviani@unina2.it
Seconda Università di Napoli
, Via Roma 29, 81031 Aversa Italy
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Andrew Zuev
Andrew Zuev
Institute of Continuous Media Mechanics UB RAS
, Acad Korelev Str. 1, 614013 Perm, Russia
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Konstantin Kostarev
Institute of Continuous Media Mechanics UB RAS
, Acad Korelev Str. 1, 614013 Perm, Russia
Antonio Viviani
Dipartimento di Ingegneria Aerospaziale e Meccanica,
Seconda Università di Napoli
, Via Roma 29, 81031 Aversa Italye-mail: Antonio.viviani@unina2.it
Andrew Zuev
Institute of Continuous Media Mechanics UB RAS
, Acad Korelev Str. 1, 614013 Perm, RussiaJ. Appl. Mech. Jan 2006, 73(1): 66-71 (6 pages)
Published Online: April 18, 2005
Article history
Received:
June 24, 2004
Revised:
April 18, 2005
Citation
Kostarev, K., Viviani, A., and Zuev, A. (April 18, 2005). "Thermal and Concentrational Maragoni Convection at Liquid∕Air Bubble Interface." ASME. J. Appl. Mech. January 2006; 73(1): 66–71. https://doi.org/10.1115/1.1991866
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