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An experimental study on the influence of fluid flow pattern on microbubble generation

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Abstract

Geometrical properties of generated microbubbles induced by different fluid flow patterns were investigated experimentally. Image processing method has been used to find microbubble size distribution and to determine bubbles’ roundness as well. Three types of flow patterns were produced by changing microbubble generator configuration in order to improve bubbles’ size distribution. These different geometrical configurations of designed microbubble generator were used to generate microbubbles in various air volume fractions. Obtained results confirm direct relation between generated microbubbles size and their distribution with fluid flow patterns. More complex geometry creating high turbulent regions are suggested to increase bubble breaking up especially for high values of void fractions.

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References

  1. Tahara Y, Stern F (1996) A large-domain approach for calculating ship boundary layers and wakes for nonzero Froude number. J Comput Phys 127:398–411

    Article  MATH  Google Scholar 

  2. McCormick ME, Bhattacharyya R (1973) Drag reduction of a submersible hull by electrolysis. Nav Eng J 85:11–16

    Article  Google Scholar 

  3. Clark H, Deutsch S (1991) Microbubble skin friction reduction on an axisymmetric body under the influence of applied axial pressure gradients. Phys Fluid A 3:2948–2954

    Article  Google Scholar 

  4. Kitagawa A, Hishida K, Kodama Y (2005) Flow structure of microbubble-laden turbulent channel flow measured by PIV combined with the shadow image technique. Exp Fluid 38:466–475

    Article  Google Scholar 

  5. Murai Y, Oiwa H, Takeda Y (2005) Bubble behavior in a vertical Taylor-Couette flow. J Phys Conf Ser 14:143–156

    Article  Google Scholar 

  6. Ortiz-Villafuerte J, Hassan YA (2006) Investigation of microbubble boundary layer using particle tracking velocimetry. J Fluid Eng 128:507–519

    Article  Google Scholar 

  7. Nagaoka H, Kurosaka M, Shibata N, Kobayashi M (2006) Effect of bubble flow velocity on drag-force and shear stress working on submerged hollow fiber membrane. Water Sci Technol 54(10):185–192

    Article  Google Scholar 

  8. Ferrante A, Elghobashi S (2005) Reynolds number effect on drag reduction in a microbubble-laden spatially developing turbulent boundary layer. J Fluid Mech 543:93–106

    Article  MATH  Google Scholar 

  9. Madavan NK, Deutsch S, Merkle CL (1984) Reduction of turbulent skin friction by microbubbles. Phys Fluid 27:356–363

    Article  Google Scholar 

  10. Madavan NK, Deutsch S, Merkle CL (1985) Measurements of local skin friction in a microbubble-modified turbulent boundary layer. J Fluid Mech 156:237–256

    Article  Google Scholar 

  11. Pal S, Merkle CL, Deutsch S (1988) Bubble characteristics and trajectories in a microbubble boundary layer. Phys Fluid 31:744–751

    Article  Google Scholar 

  12. Kawashima H, Kodama Y, Hinatsu M, Hori T, Makino M, Ohnawa M, Takeshi H, Sakoda M, Kawashima H, Matsuno F (2007) A research project on application of air bubble injection to a full scale ship for drag reduction. In: Proceedings of FEDSM2007, 5th Joint ASME/JSME Fluids Engineering Conference July 30–August 2 2007, San Diego, California, USA

  13. Kato H, Iwashina T, Miyanaga M, Yamaguchi H (1999) Effect of microbubbles on the structure of turbulence in a turbulent boundary layer. J Mar Sci Technol 4:115–162

    Article  Google Scholar 

  14. Wu SJ, Hsu C-H, Lin T-T (2007) Model test of the surface and submerged vehicles with the micro-bubble drag reduction. Ocean Eng 34:83–93

    Article  Google Scholar 

  15. Murai Y, Fukuda H, Oishi Y, Kodama Y, Yamamoto F (2007) Skin friction reduction by large air bubbles in a horizontal channel flow. Int J Multiph Flow 33:147–163

    Article  Google Scholar 

  16. Kunz RF, Gibeling HJ, Maxey MR, Tryggvason G, Fontaine AA, Petrie HL, Ceccio SL (2007) Validation of two-fluid Eulerian CFD Modeling for Microbubble Drag Reduction Across a Wide Range of Reynolds Numbers. Trans ASME 129:66–79

    Google Scholar 

  17. Shen X, Ceccio SL, Perlin M (2006) Influence of bubble size on micro-bubble drag reduction. Exp Fluid 41:415–424

    Article  Google Scholar 

  18. Nouri NM, Maghsoudi E, Sarreshtehdari A, Yahyaei M (2007) Microbubble generation using high turbulent intensity flow. In: Proceedings of FEDSM2007, 5th Joint ASME/JSME Fluids Engineering Conference July 30–August 2 2007, San Diego, California, USA

  19. Martínez-Bazán C, Montañés JL, Lasheras JC (1999) On the breakup of an air bubble injected into a fully developed turbulent flow, Part1. Breakup frequency. J Fluid Mech 401:157–182

    Article  MATH  Google Scholar 

  20. Martínez-Bazán C, Montañés JL, Lasheras JC (1999) On the Breakup of an Air Bubble Injected into a Fully Developed Turbulent Flow, Part 2. Size PDF of the resulting daughter bubbles. J Fluid Mech 401:183–207

    Article  Google Scholar 

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Authors and Affiliations

  1. Applied Hydrodynamics Laboratory, Department of Mechanical Engineering, Iran University of Science and Technology, Narmak 14464, Tehran, Iran

    N. M. Nouri, A. Sarreshtehdari, E. Maghsoudi & A. Moosaie

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  1. N. M. Nouri
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  2. A. Sarreshtehdari
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  3. E. Maghsoudi
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  4. A. Moosaie
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Correspondence to A. Moosaie.

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Nouri, N.M., Sarreshtehdari, A., Maghsoudi, E. et al. An experimental study on the influence of fluid flow pattern on microbubble generation . Forsch Ingenieurwes 72, 233–240 (2008). https://doi.org/10.1007/s10010-008-0083-y

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  • DOI: https://doi.org/10.1007/s10010-008-0083-y

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