NON-INTRUSIVE, SPATIALLY RESOLVED TEMPERATURE MEASUREMENTS USING COHERENT ANTI-STOKES RAMAN SPECTROSCOPY (CARS)

Sean P. Kearney, Robert P. Lucht, Anthony M. Jacobi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper describes the use of a dual-broadband, pure-rotational coherent anti-Stokes Raman spectroscopy (CARS) technique for nonintrusive, spatially resolved temperature measurements in convectiveheat- transfer boundary layers. CARS is an optical, laser diagnostic technique that has often been used for temperature and species concentration measurements in high-temperature combustion applications. This work is one of the first applications of CARS to convective heat transfer. The basics of the CARS technique are discussed and the method is compared to other temperature measurement techniques used in convective-heat-transfer work. Dualbroadband, pure-rotational CARS was used to measure mean temperature profiles in a low-Reynolds-number, turbulent boundary layer. Shot-averaged temperature data were acquired as close as 50 pm (±25 pm) to the wall, with a spatial resolution of 50 pm normal to the heat transfer surface, and a precision limit of ±4 K. Results, presented for three representative Reynolds numbers, display good agreement with the thermal law of the wall for zero-pressure-gradient flows.

Original languageEnglish (US)
Title of host publicationHeat Transfer
Subtitle of host publicationVolume 5 � Numerical and Experimental Methods in Heat Transfer
PublisherAmerican Society of Mechanical Engineers (ASME)
Pages585-592
Number of pages8
ISBN (Electronic)9780791826744
DOIs
StatePublished - 1998
Externally publishedYes
EventASME 1998 International Mechanical Engineering Congress and Exposition, IMECE 1998 - Anaheim, United States
Duration: Nov 15 1998Nov 20 1998

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume1998-Q

Conference

ConferenceASME 1998 International Mechanical Engineering Congress and Exposition, IMECE 1998
Country/TerritoryUnited States
CityAnaheim
Period11/15/9811/20/98

ASJC Scopus subject areas

  • Mechanical Engineering

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