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Effect of flow conditions on spray cone angle of a two-fluid atomizer

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Abstract

A visual study is conducted to determine the effects of operating conditions on the spray cone angle of a two-fluid atomizer. The liquid (water) jets exit from peripheral inclined orifices and are introduced into a high-speed gas (air) stream in the gravitational direction. Using a high-speed imaging system, the spray cone angle is determined for Reynolds numbers ranging from 4×104 to 9×104 and different Weber numbers up to 140. The droplet sizes (Sauter mean diameter) and their distributions are determined using a Malvern Mastersizer X. The results show that the spray cone angle depends on the operating conditions, especially in lower values of Reynolds and Weber numbers. An empirical correlation is also obtained to predict the spray cone angle in terms of these two parameters.

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Authors and Affiliations

  1. School of Mechanical Engineering, Tehran University, Tehran, 11155-4563, Iran

    Maziar Shafaee, Sayed Abdolhossein Banitabaei, Mehdi Ashjaee & Vahid Esfahanian

Authors
  1. Maziar Shafaee
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  2. Sayed Abdolhossein Banitabaei
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  3. Mehdi Ashjaee
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  4. Vahid Esfahanian
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Corresponding author

Correspondence to Maziar Shafaee.

Additional information

This paper was recommended for publication in revised form by Associate Editor Gihun Son

Maziar Shafaee received his B.S. in Mechanical Engineering from Tabriz University in 2000 and his M.S. from Tehran University in 2002. Mr. Shafaee is currently working on his Ph.D. thesis at the Spray and Atomization Lab at the Department of Mechanical Engineering, in Tehran University. His research interests include the numerical and experimental study of spray and atomization systems.

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Shafaee, M., Banitabaei, S.A., Ashjaee, M. et al. Effect of flow conditions on spray cone angle of a two-fluid atomizer. J Mech Sci Technol 25, 365–369 (2011). https://doi.org/10.1007/s12206-010-1215-5

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  • DOI: https://doi.org/10.1007/s12206-010-1215-5

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