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Proceedings Paper

Friction coefficient influence upon fluid jet atomization
Author(s): Marius Beniuga; Ioan Mihai; Cornel Suciu; Silviu Sprinceană; Ioan C. Mihai
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Paper Abstract

The work presented herein illustrates the differences between aerodynamic friction coefficients of liquid droplets of different shapes and dimensions that come into contact with air. Aerodynamic friction forces on a drop can be calculated if the aerodynamic coefficient of friction and cross-sectional area normal to the flow are known. The crosssectional area can be calculated on the basis of the maximum diameter of the droplet, dc, if it is assumed that the deformed droplets have the form of a flattened spheroid. According to Clift et al[6], when a drop of liquid has weak internal tensions or high surface tension due to viscosity, external flow may differ from the surrounding liquid drop at the same Reynolds number. Internal tensions that exist in most systems of practical importance are negligible compared to surface tension. Given the fact that the ratio of the viscosity of the liquid and the gas jet spray is significant, we can assume that internal circulation is an important parameter.

Paper Details

Date Published: 20 February 2015
PDF: 7 pages
Proc. SPIE 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII, 925824 (20 February 2015); doi: 10.1117/12.2070430
Show Author Affiliations
Marius Beniuga, Stefan cel Mare Univ. of Suceava (Romania)
Ioan Mihai, Stefan cel Mare Univ. of Suceava (Romania)
Cornel Suciu, Stefan cel Mare Univ. of Suceava (Romania)
Silviu Sprinceană, Stefan cel Mare Univ. of Suceava (Romania)
Ioan C. Mihai, Stefan cel Mare Univ. of Suceava (Romania)


Published in SPIE Proceedings Vol. 9258:
Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII
Ionica Cristea; Marian Vladescu; Razvan Tamas, Editor(s)

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