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Foam drainage wave coalescing and its energy evolution

  • Articles/Condensed State Physics
  • Published:
Chinese Science Bulletin

Abstract

Liquid foam is a dense packing of gas bubbles in a small amount of surfactant solution. Liquid drains out of foams until equilibrium is reached due to the compromise between gravity and capillarity, which greatly affects the stability of foam. Based on a series of work on foam structure and drainage we conducted previously, this paper reports the results on coalescence of an original forced drainage wave at a low flow rate with subsequent drainage waves with higher flow rates. The evolutions of viscous energy and surface energy during the process of coalescence are theoretically analyzed.

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Authors and Affiliations

  1. State Key Laboratory for Hydroscience and Engineering, Tsinghua University, Beijing, 100084, China

    QiCheng Sun & GuangQian Wang

  2. Institute for Corrosion and Multiphase Technology, Ohio University, Ohio, 45701, USA

    Jin Huang

Authors
  1. QiCheng Sun
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  2. Jin Huang
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  3. GuangQian Wang
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Corresponding author

Correspondence to QiCheng Sun.

Additional information

Supported by the National Natural Science Foundation of China (Grant No. 20776142)

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Sun, Q., Huang, J. & Wang, G. Foam drainage wave coalescing and its energy evolution. Chin. Sci. Bull. 53, 3138–3141 (2008). https://doi.org/10.1007/s11434-008-0426-y

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  • DOI: https://doi.org/10.1007/s11434-008-0426-y

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