Abstract
N-pentane micro-bubbles are created on a small heated film flushed-mounted at the lower wall of a horizontal channel. The bubble growth and detachment in the shear flow are filmed with a high-speed video camera. The time evolutions of the bubble radius and bubble centre position are measured from image processing. The growth rate is determined and compared to models of the literature. The experimental results are also used to estimate the different forces acting on the bubble during its growth and after its detachment.
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Acknowledgments
The authors would like to thank Jacques Magnaudet for fruitful discussion on the dynamical aspects of this study and Sébastien Cazin for his help in the visualisations and image processing.
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Duhar, G., Riboux, G. & Colin, C. Vapour bubble growth and detachment at the wall of shear flow. Heat Mass Transfer 45, 847–855 (2009). https://doi.org/10.1007/s00231-007-0287-y
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DOI: https://doi.org/10.1007/s00231-007-0287-y