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Velocity and rotation measurements in acoustically levitated droplets

Saha, Abhishek and Basu, Saptarshi and Kumar, Ranganathan (2012) Velocity and rotation measurements in acoustically levitated droplets. In: PHYSICS LETTERS A, 376 (45). pp. 3185-3191.

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Official URL: http://dx.doi.org/10.1016/j.physleta.2012.08.013

Abstract

The velocity scale inside an acoustically levitated droplet depends on the levitator and liquid properties. Using Particle Imaging Velocimetry (PIV), detailed velocity measurements have been made in a levitated droplet of different diameters and viscosity. The maximum velocity and rotation are normalized using frequency and amplitude of acoustic levitator, and droplet viscosity. The non-dimensional data are fitted for micrometer- and millimeter-sized droplets levitated in different levitators for different viscosity fluids. It is also shown that the rotational speed of nanosilica droplets at an advanced stage of vaporization compares well with that predicted by exponentially fitted parameters. (C) 2012 Elsevier B.V. All rights reserved.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to ELSEVIER SCIENCE BV, NETHERLANDS
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Depositing User: Francis Jayakanth
Date Deposited: 02 Jan 2013 08:47
Last Modified: 02 Jan 2013 08:47
URI: http://eprints.iisc.ac.in/id/eprint/45598

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