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Modified model of bubble formation in non-Newtonian fluids

Transactions of Tianjin University volume 15, pages 56–60 (2009)Cite this article

Abstract

Based on the comprehensive forces balance model, a modified model of the formation of a single bubble in non-Newtonian fluid under constant flowrate was developed by taking account of the effect of the ingoing gas through orifice as well as its variation on the radial expansion of bubble. The modified model involves the radial expansion equation of bubble surface and the forces balance equation in vertical direction of the bubble respectively. The shape variation of bubbles formed in polyacrylamide (PAM) aqueous solutions under various conditions was predicted numerically. The practical formation of bubbles was real-time visualized and recorded by a CCD camera and a computer by means of a special laser image measurement system. Results show that the predicted shapes of the bubbles by the present model agree well with experimental observation.

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Authors and Affiliations

  1. State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 300072, China

    Youguang Ma  (马友光), Wenyuan Fan  (范文元), Shaokun Jiang  (姜韶堃) & Chunying Zhu  (朱春英)

  2. Laboratory of Chemical Engineering Science, CNRS-ENSIC-INPL, 1 rue Grandville, BP 451, 54001, Nancy Cedex, France

    Huaizhi Li  (李怀志)

Authors
  1. Youguang Ma  (马友光)
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  2. Wenyuan Fan  (范文元)
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  3. Shaokun Jiang  (姜韶堃)
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  4. Chunying Zhu  (朱春英)
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  5. Huaizhi Li  (李怀志)
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Corresponding author

Correspondence to Youguang Ma  (马友光).

Additional information

Supported by National Natural Science Foundation of China (No.20476073) and National Programme of Introducing Talents of Discipline to Universities (No.B06006).

MA Youguang, born in 1964, male, Dr, Prof.

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Ma, Y., Fan, W., Jiang, S. et al. Modified model of bubble formation in non-Newtonian fluids. Trans. Tianjin Univ. 15, 56–60 (2009). https://doi.org/10.1007/s12209-009-0011-8

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  • DOI: https://doi.org/10.1007/s12209-009-0011-8

Keywords

  • bubble formation
  • non-Newtonian fluid
  • orifice diameter
  • gas flowrate