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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 51, Iss. 16 — Jun. 1, 2012
  • pp: 3519–3525

Temperature and velocity measurement fields of fluids using a schlieren system

Adrian Martínez-González, J. A. Guerrero-Viramontes, and David Moreno-Hernández  »View Author Affiliations


Applied Optics, Vol. 51, Issue 16, pp. 3519-3525 (2012)
http://dx.doi.org/10.1364/AO.51.003519


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Abstract

This paper proposes a combined method for two-dimensional temperature and velocity measurements in liquid and gas flow using a schlieren system. Temperature measurements are made by relating the intensity level of each pixel in a schlieren image to the corresponding knife-edge position measured at the exit focal plane of the schlieren system. The same schlieren images were also used to measure the velocity of the fluid flow. The measurement is made by using particle image velocimetry (PIV). The PIV software used in this work analyzes motion between consecutive schlieren frames to obtain velocity fields. The proposed technique was applied to measure the temperature and velocity fields in the natural convection of water provoked by a heated rectangular plate.

© 2012 Optical Society of America

OCIS Codes
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(010.7060) Atmospheric and oceanic optics : Turbulence
(040.1520) Detectors : CCD, charge-coupled device
(100.0100) Image processing : Image processing
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: October 24, 2011
Revised Manuscript: February 13, 2012
Manuscript Accepted: February 14, 2012
Published: May 31, 2012

Citation
Adrian Martínez-González, J. A. Guerrero-Viramontes, and David Moreno-Hernández, "Temperature and velocity measurement fields of fluids using a schlieren system," Appl. Opt. 51, 3519-3525 (2012)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-51-16-3519


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