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Optics Letters

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  • Vol. 36, Iss. 2 — Jan. 15, 2011
  • pp: 196–198

Simultaneous velocity and temperature measurements in gaseous flow fields using the VENOM technique

Rodrigo Sánchez-González, Ravi Srinivasan, Rodney D. W. Bowersox, and Simon W. North  »View Author Affiliations


Optics Letters, Vol. 36, Issue 2, pp. 196-198 (2011)
http://dx.doi.org/10.1364/OL.36.000196


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Abstract

We present an initial demonstration of simultaneous velocity and temperature mapping in gaseous flow fields using a new nitric oxide planar laser-induced fluorescence-based method. The vibrationally excited NO monitoring (VENOM) technique is an extension of two-component velocimetry using vibrationally excited NO generated from the photodissociation of seeded NO 2 [ Appl. Opt. 48, 4414 (2009)], where the two sequential fluorescence images are obtained probing two different rotational states to provide both velocity and temperature maps. Comparisons to computational fluid dynamics simulations show that the initial VENOM measurements provide good velocity and temperature maps in the relatively high-density regions of the flow, where the rms uncertainties are approximately 5% for velocity and 9% for temperature.

© 2011 Optical Society of America

OCIS Codes
(120.1740) Instrumentation, measurement, and metrology : Combustion diagnostics
(120.7250) Instrumentation, measurement, and metrology : Velocimetry
(300.2530) Spectroscopy : Fluorescence, laser-induced

ToC Category:
Instrumentation, Measurement, and Metrology

History
Original Manuscript: September 23, 2010
Revised Manuscript: November 12, 2010
Manuscript Accepted: December 7, 2010
Published: January 11, 2011

Citation
Rodrigo Sánchez-González, Ravi Srinivasan, Rodney D. W. Bowersox, and Simon W. North, "Simultaneous velocity and temperature measurements in gaseous flow fields using the VENOM technique," Opt. Lett. 36, 196-198 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-2-196

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