Measurement of temperature field of a Rayleigh-Bénard convection using two-color laser-induced fluorescence

J. Sakakibara, Ronald Adrian

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

The two-color laser-induced fluorescence technique developed by Sakakibara and Adrian (1999) for the measurement of planar turbulent temperature fields in water has been refined to reduce the RMS error of the instantaneous measurement by an order of magnitude. The technique achieves higher sensitivity by employing two high-resolution 14-bit monochrome CCD cameras. Further refinement is achieved by post-processing the data using a convolution method that matches the degree of the image blurring of the two images. The method is demonstrated by application to turbulent Rayleigh-Bénard convection wherein the random error is shown to be less than 0.17 K.

Original languageEnglish (US)
Pages (from-to)331-340
Number of pages10
JournalExperiments in Fluids
Volume37
Issue number3
DOIs
StatePublished - Sep 2004
Externally publishedYes

Fingerprint

laser induced fluorescence
Temperature distribution
temperature distribution
convection
Fluorescence
Color
color
Random errors
blurring
Lasers
random errors
CCD cameras
Convolution
convolution integrals
Water
sensitivity
high resolution
Processing
water
Convection

ASJC Scopus subject areas

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Mechanics of Materials
  • Computational Mechanics

Cite this

Measurement of temperature field of a Rayleigh-Bénard convection using two-color laser-induced fluorescence. / Sakakibara, J.; Adrian, Ronald.

In: Experiments in Fluids, Vol. 37, No. 3, 09.2004, p. 331-340.

Research output: Contribution to journalArticle

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