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Atomization and Sprays

Erscheint 12 Ausgaben pro Jahr

ISSN Druckformat: 1044-5110

ISSN Online: 1936-2684

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MEASUREMENT OF DYNAMIC SURFACE TENSION OF SUSPENSION SPRAYS BASED ON OSCILLATING JET TECHNIQUE

Volumen 29, Ausgabe 1, 2019, pp. 39-57
DOI: 10.1615/AtomizSpr.2019029945
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ABSTRAKT

Dynamic surface tension plays an important role in the atomization process and droplet formation. We report measurement of dynamic surface tension of liquid suspensions in the range of sub-milliseconds time scales. An elliptic oscillating jet technique, combined with an analytical model, was applied to various types of liquids. First, distilled water and ethanol as pure liquids with constant surface tension were examined, followed by a mixture of distilled water and a surfactant (Triton X-100) at three different concentrations with variable surface tension. The final measurements were carried out on hydrophilic and hydrophobic solid particles, suspended in distilled water at different concentrations. The static surface tension of all liquids was measured with a du Nouy ring tensiometer and compared with the dynamic surface tension.

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REFERENZIERT VON
  1. Vegad Chetankumar S., Kumar Amit, Chakravarthy Satyanarayanan R., Visualization of features of atomizing circular liquid sheet using simultaneous Volume Laser-Induced Fluorescence, Experimental Thermal and Fluid Science, 112, 2020. Crossref

  2. Vegad Chetankumar S., Kumar Amit, Chakravarthy Satyanarayanan R., Dynamics of free-surface mutually perpendicular twin liquid sheets and their atomization characteristics, Physics of Fluids, 31, 8, 2019. Crossref

  3. Morad Mohammad Reza, Nasiri Mahdi, Amini Ghobad, Numerical Modeling of Instability and Breakup of Elliptical Liquid Jets, AIAA Journal, 58, 6, 2020. Crossref

  4. Morad Mohammad Reza, Nasiri Mahdi, Amini Ghobad, Axis-switching and breakup of rectangular liquid jets, International Journal of Multiphase Flow, 126, 2020. Crossref

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