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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 7 — Apr. 1, 2006
  • pp: 906–908

Velocity imaging for the liquid–gas interface in the near field of an atomizing spray: proof of concept

David L. Sedarsky, Megan E. Paciaroni, Mark A. Linne, James R. Gord, and Terrence R. Meyer  »View Author Affiliations

Optics Letters, Vol. 31, Issue 7, pp. 906-908 (2006)

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We describe adaptation of ballistic imaging for the liquid core of an atomizing spray. To describe unambiguously the forces that act to break apart the liquid core in a spray, one must directly measure the force vectors themselves. It would be invaluable, therefore, to obtain velocity and acceleration data at the liquid–gas interface. We employ double-image ballistic imaging to extract velocity information through the application of image analysis algorithms. This method is shown to be effective for liquid phase droplet features within the resolution limit of the imaging system. In light of these results, it is clear that a three- or four-image implementation of this technique would allow the determination of acceleration, and by extension, information about the forces active in spray breakup.

© 2006 Optical Society of America

OCIS Codes
(110.2960) Imaging systems : Image analysis
(110.7050) Imaging systems : Turbid media
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: October 14, 2005
Revised Manuscript: December 9, 2005
Manuscript Accepted: December 18, 2005

David L. Sedarsky, Megan E. Paciaroni, Mark A. Linne, James R. Gord, and Terrence R. Meyer, "Velocity imaging for the liquid-gas interface in the near field of an atomizing spray: proof of concept," Opt. Lett. 31, 906-908 (2006)

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