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Characteristics of liquid sheets formed by splash plate nozzles

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Abstract

An experimental study was conducted to identify the effect of viscosity on the characteristics of liquid sheets formed by a splash plate nozzle. Various mixtures of corn syrup and water are used to obtain viscosities in the range 1–170 mPa.s. Four different splash plates with nozzle diameters of 0.5, 0.75, 1, and 2 mm, with a constant plate angle of 55° were tested. Liquid sheets formed under various operating conditions were directly visualized. The sheet atomization process for the range of parameters studied here is governed by two different mechanisms: Rayleigh–Plateau (R–P) and Rayleigh–Taylor (R–T) instabilities. R–P occurs at the rim and R–T occurs on the thin sheet. The rim instability can be laminar or turbulent, depending on the jet Reynolds number. The R–T instability of the sheet is observed at the outer edges of the radially spreading sheet, where the sheet is the thinnest. It can also occur inside the sheet, due to formation of holes and ruptures.

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Acknowledgments

This work is jointly supported by the NSERC and the research consortium on “ Increasing Energy and Chemical Recovery Efficiency in the Kraft Process” at the university of Toronto.

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  1. M. Ahmed

    Present address: Mechanical Engineering Department, Assiut University, Assiut, 71516, Egypt

Authors and Affiliations

  1. Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, ON, Canada, M5S 3G8

    M. Ahmed, A. Amighi & N. Ashgriz

  2. Department of Chemical Engineering & Applied Chemistry, University of Toronto, 200 College Street, Toronto, ON, Canada, M5S 3E5

    H. N. Tran

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  1. M. Ahmed
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  2. A. Amighi
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Correspondence to N. Ashgriz.

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Ahmed, M., Amighi, A., Ashgriz, N. et al. Characteristics of liquid sheets formed by splash plate nozzles. Exp Fluids 44, 125–136 (2008). https://doi.org/10.1007/s00348-007-0381-4

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  • DOI: https://doi.org/10.1007/s00348-007-0381-4

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