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High-speed visualization of soap bubble blowing and image-processing-based analysis of pinch-off dynamics

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Abstract

Soap bubble blowing has long been an amusement for humans, and the process involves pinch-off similarly to liquid drops and gas bubbles. To visualize the pinch-off process of soap bubble blowing, we built an apparatus consisting of air jet flow and thin soap film on a circular ring, and replicated human soap bubbling. High-speed videography captured growing soap film tube and following pinch-off, and the minimal neck radius of the tube was measured based on image processing. Scaling law analyses show that regardless of the ring diameter, the scaling exponent of soap bubble pinch-off is about 2/3, which is similar to that of soap film bridge. Also, the speed of the airflow into the tube was evaluated based on volume calculation of the soap film tube, and the Reynolds number of the airflow was estimated to be 1060–2970, which suggests that soap bubbling may involve Bernoulli suction effect.

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References

  • Bai X-D, Liu J (2007) Formation of micro/nano structures out of soap bubbles. Phys E 39:85–88

    Article  Google Scholar 

  • Behroozi F (2008) Soap bubbles in paintings: art and science. Am J Phys 76:1087–1091

    Article  Google Scholar 

  • Boys CV (1889) Soap bubbles: their colors and the forces which mold them. Thomas Y. Crowell Company, New York

    Google Scholar 

  • Brenner MP, Eggers J, Joseph K, Nagel SR, Shi XD (1997) Breakdown of scaling in droplet fission at high Reynolds number. Phys Fluids 9:1573–1590

    Article  Google Scholar 

  • Burton JC, Waldrep R, Taborek P (2005) Scaling and instabilities in bubble pinch-off. Phys Rev Lett 94:184502

    Article  Google Scholar 

  • Chen Y-J, Steen PH (1997) Dynamics of inviscid capillary breakup: collapse and pinchoff of a film bridge. J Fluid Mech 341:245–267

    Article  MathSciNet  MATH  Google Scholar 

  • Cryer SA, Steen PH (1992) Collapse of the soap-film bridge: quasistatic description. J Colloid Interface Sci 154:276–288

    Article  Google Scholar 

  • de Gennes P-G, Brochard-Wyart F, Quéré D (2004) Capillarity and wetting phenomena: drops, bubbles, pearls, waves. Springer, New York

    Book  MATH  Google Scholar 

  • Eggers J (1993) Universal pinching of 3D axisymmetric free-surface flow. Phys Rev Lett 71:3458–3460

    Article  Google Scholar 

  • Fellouah H, Ball CG, Pollard A (2009) Reynolds number effects within the development region of a turbulent round free jet. Int J Heat Mass Transfer 52:3943–3954

    Article  Google Scholar 

  • Gordillo JM, Sevilla A, Rodríguez-Rodríguez J, Martínez-Bazán C (2005) Axisymmetric bubble pinch-off at high Reynolds numbers. Phys Rev Lett 95:194501

    Article  Google Scholar 

  • Isenberg C (1978) The science of soap films and soap bubbles. Tieto Ltd., Clevedon

    MATH  Google Scholar 

  • Keim NC, Møller P, Zhang WW, Nagel SR (2006) Breakup of air bubbles in water: memory and breakdown of cylindrical symmetry. Phys Rev Lett 97:144503

    Article  Google Scholar 

  • Kim D, Yi SJ, Kim HD, Kim KC (2014) Visualization study on the transient liquid film behavior and inner gas flow after rupture of a soap bubble. J Vis 17:337–344

    Article  Google Scholar 

  • Mi J, Xu M, Zhou T (2013) Reynolds number influence on statistical behaviors of turbulence in a circular free jet. Phys Fluids 25:075101

    Article  Google Scholar 

  • Notz PK, Chen AU, Basaran OA (2001) Satellite drops: unexpected dynamics and change of scaling during pinch-off. Phys Fluids 13:549–552

    Article  MATH  Google Scholar 

  • Plateau J (1873) Experimental and theoretical statics of liquids subject to molecular forces only. Gauthier-Villars, Paris

    MATH  Google Scholar 

  • Prosperetti A (2004) Bubbles. Phys Fluids 16:1852–1865

    Article  MathSciNet  MATH  Google Scholar 

  • Robinson ND, Steen PH (2001) Observations of singularity formation during the capillary collapse and bubble pinch-off of a soap film bridge. J Colloid Interface Sci 241:448–458

    Article  Google Scholar 

  • Steen PH, Chen Y-J (1999) Contacting and forming singularities: distinguishing examples. Chaos 9:164–172

    Article  Google Scholar 

  • Thoroddsen ST, Etoh TG, Takehara K (2007) Experiments on bubble pinch-off. Phys Fluids 19:042101

    Article  MATH  Google Scholar 

  • Todde V, Spazzini PG, Sandberg M (2009) Experimental analysis of low Reynolds number free jets. Exp Fluids 47:279–294

    Article  Google Scholar 

  • van Hoeve W, Gekle S, Snoeijer JH, Versluis M, Brenner MP, Lohse D (2010) Breakup of diminutive Rayleigh jets. Phys Fluids 22:122003

    Article  Google Scholar 

  • van Hoeve W, Dollet B, Versluis M, Lohse D (2011) Microbubble formation and pinch-off scaling exponent in flow-focusing devices. Phys Fluids 23:092001

    Article  Google Scholar 

  • Vouros AP, Panidis T (2013) Turbulent properties of a low Reynolds number, axisymmetric, pipe jet. Exp Therm Fluid Sci 44:42–50

    Article  Google Scholar 

  • Wilkes ED, Phillips SD, Basaran OA (1999) Computational and experimental analysis of dynamics of drop formation. Phys Fluids 11:3577–3598

    Article  MATH  Google Scholar 

Download references

Acknowledgments

This work was supported by the start-up grant to SR from the University of Nebraska-Lincoln. The authors appreciate Dr. Howard Stone for his general comments on the study.

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Authors and Affiliations

  1. Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE, 68588, USA

    John Davidson & Sangjin Ryu

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  1. John Davidson
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  2. Sangjin Ryu
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Correspondence to Sangjin Ryu.

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Davidson, J., Ryu, S. High-speed visualization of soap bubble blowing and image-processing-based analysis of pinch-off dynamics. J Vis 20, 53–61 (2017). https://doi.org/10.1007/s12650-016-0367-5

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  • DOI: https://doi.org/10.1007/s12650-016-0367-5

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