The use of the Karhunen-Loe`ve procedure for the calculation of linear Eigenfunctions
Journal of Computational Physics
Temperature Measurement by Two-Color LIF Technique Using Nd:YAG Lasers
Journal of Visualization
3C PIV and PLIF Measurement in Turbulent Mixing Round Jet Impingement
Journal of Visualization
Experimental Study of Convection in a Model Czochralski Crucible Using Liquid Crystal Thermography
Journal of Visualization
Temperature Measurement of Dilute Hydrogen Flame by Digital Laser-Speckle Technique
Journal of Visualization
Occurrence of Asymmetric Flow Pattern behind a Double Orifice in a Square Pipe
Journal of Visualization
Study on Concurrent Measurements of Velocity and Density Distributions for High-Speed CO2 Flow
Journal of Visualization
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In this paper, non-intrusive imaging techniques for simultaneously measuring temperature and velocity fields of thermal liquid flows are described. The experimental methods for temperature imaging considered here are the thermo-sensitive liquid crystal tracers and the laser-induced fluorescence, which are combined with particle image velocimetry (PIV) to measure simultaneously the corresponding 2D and 3D velocity fields. The features of these experimental methods and characteristics are examined, covering the measurable temperature range, uncertainty of measurement, time response and so on. The successful examples of simultaneous measurement of temperature and velocity fields are described for turbulent Rayleigh-Bérnard convection of a horizontal fluid layer and turbulent buoyant plume issuing from a circular nozzle, and their physical mechanisms of transport phenomena are explained.