Laser diagnostics for characterization of sprays formed by a collapsing non-equilibrium bubble

Kannan, Y S and B, Saravanan and Karri, Badarinath (2015) Laser diagnostics for characterization of sprays formed by a collapsing non-equilibrium bubble. Journal of Physics: Conference Series, 656 (012114). pp. 1-4. ISSN 1742-6588

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Abstract

In this paper, we investigate the use of laser diagnostic tools for in-plane imaging of bubble induced spray using a laser sheet and Mie scattering technique. A perspex plate of thickness 10 mm with a hole of diameter 1 mm in the center is placed in the middle of a glass tank filled with water such that the top surface of the plate coincides with the water surface. A bubble is created just below the hole using a low-voltage spark circuit such that it expands against the hole. This leads to the formation of two jets which impact leading to a spray and break-up into droplets. The spray evolution is observed using a laser sheet directed in a plane through the center of the hole. The illuminated plane is imaged using a high-speed camera based on the Mie scattering from glass beads suspended in the liquid. Results show that Mie scattering technique has potential in studying bubble-induced sprays with applications such as in fuel sprays, drug-delivery etc, and also for validation of numerical codes. We present results from our ongoing experiments in this paper.

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IITH Creators:

IITH Creators	ORCiD
Karri, Badarinath	UNSPECIFIED
B, Saravanan	UNSPECIFIED

Item Type:

Article

Additional Information:

BK would like to thank his PhD supervisors Prof. Khoo Boo Cheong and Dr. Evert Klaseboer, and his colleague during PhD, Mr. Terence Goh. The authors also thank Ms. Jyothi, Mr. Mayur, Dr. Ashok Pandey, Dr. Ramji, Mr. Rakesh Kale and other IIT-Hyderabad students for the various ways in which they helped us in the experiment.

Uncontrolled Keywords:

CAV2015

Subjects:

Physics > Astronomy Astrophysics
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Depositing User:

Team Library

Date Deposited:

14 Dec 2015 08:50

Last Modified:

16 Jan 2018 10:18

URI:

http://raiithold.iith.ac.in/id/eprint/2074