Combined two-dimensional velocity and temperature measurements of natural convection using a high-speed camera and temperature-sensitive particles

This paper proposes a combined method for two-dimensional temperature and velocity measurements in liquid and gas flows using temperature-sensitive particles (TSPs), a pulsed ultraviolet laser, and a high-speed camera. TSPs respond to temperature changes in the flow and can also serve as tracers for the velocity field. The luminescence from the TSPs was recorded at 15,000 frames per second as sequential images for a lifetime-based temperature analysis. These images were also used for the particle image velocimetry calculations. The temperature field was estimated using several images, based on the lifetime method. The decay curves for various temperature conditions fit well to exponential functions, and from these the decay constants at each temperature were obtained. The proposed technique was applied to measure the temperature and velocity fields in natural convection driven by a Marangoni force and buoyancy in a rectangular tank. The accuracy of the temperature measurement of the proposed technique was ±0.35–0.40°C.

[1]  R. Adrian,et al.  Measurement of temperature field of a Rayleigh-Bénard convection using two-color laser-induced fluorescence , 2004 .

[2]  P. Petersson,et al.  Simultaneous 2D flow velocity and gas temperature measurements using thermographic phosphors , 2008 .

[3]  Yongchen Song,et al.  DeLIF measurement of pH distribution around dissolving CO2 droplet in high pressure vessel , 2005 .

[4]  J. Janicka,et al.  An algorithm for the characterisation of multi-exponential decay curves , 2009 .

[5]  M. Schlüter,et al.  Experimental investigation of liquid–liquid mixing in T-shaped micro-mixers using μ-LIF and μ-PIV , 2006 .

[6]  S. Wade,et al.  Fluorescence intensity ratio technique for optical fiber point temperature sensing , 2003 .

[7]  Tommaso Astarita,et al.  Adaptive space resolution for PIV , 2009 .

[8]  Colette McDonagh,et al.  Temperature-corrected pressure-sensitive paint measurements using a single camera and a dual-lifetime approach , 2002 .

[9]  J. Coppeta,et al.  Dual emission laser induced fluorescence for direct planar scalar behavior measurements , 1998 .

[10]  Nobuyuki Fujisawa,et al.  Simultaneous measurement of temperature and velocity using two-colour LIF combined with PIV with a colour CCD camera and its application to the turbulent buoyant plume , 2004 .

[11]  A. Mills,et al.  Luminescence temperature sensing using poly(vinyl alcohol)-encapsulated Ru(bpy)3 2+ films. , 2006, The Analyst.

[12]  Martin Gouterman,et al.  Correcting lifetime measurements for temperature , 1999 .

[13]  J. Janicka,et al.  Gas compositional and pressure effects on thermographic phosphor thermometry , 2007 .

[14]  Hui Hu,et al.  Molecular tagging velocimetry and thermometry and its application to the wake of a heated circular cylinder , 2006 .

[15]  K. Asai,et al.  Advanced lifetime PSP imaging system for pressure and temperature field measurement , 2006 .

[16]  S. Someya,et al.  Measurement of the interface tension of immiscible liquids interface , 2005 .

[17]  B. J. Basu,et al.  Temperature dependence of the luminescence lifetime of a europium complex immobilized in different polymer matrices , 2008 .

[18]  Mark A. Thomas,et al.  High-temperature remote thermometry using laser-induced fluorescence decay lifetime measurements of Y/sub 2/O/sub 3/:Eu and YAG:Tb thermographic phosphors , 1993 .

[19]  J. Bell,et al.  Pressure-sensitive paint in aerodynamic testing , 1993 .

[20]  H. Bockhorn,et al.  Two-dimensional estimation of Reynolds-fluxes and -stresses in a Jet-in-Crossflow arrangement by simultaneous 2D-LIF and PIV , 2007 .

[21]  Konstantinos Kontis,et al.  Thermographic Phosphors for High Temperature Measurements: Principles, Current State of the Art and Recent Applications , 2008, Sensors.

[22]  Michel Stanislas,et al.  Main results of the third international PIV Challenge , 2008 .

[23]  J. Callis,et al.  Luminescent barometry in wind tunnels , 1990 .

[24]  Ingo Klimant,et al.  A MODULAR LUMINESCENCE LIFETIME IMAGING SYSTEM FOR MAPPING OXYGEN DISTRIBUTION IN BIOLOGICAL SAMPLES , 1998 .

[25]  Larry R. Dalton,et al.  Dual luminophor pressure sensitive paint. II. Lifetime based measurement of pressure and temperature , 2003 .

[26]  A. Heyes,et al.  Two-colour phosphor thermometry for surface temperature measurement , 2006 .

[27]  Michael Schäferling,et al.  Method for simultaneous luminescence sensing of two species using optical probes of different decay time, and its application to an enzymatic reaction at varying temperature , 2009, Analytical and bioanalytical chemistry.

[28]  Gerhard A. Holst,et al.  Luminescence lifetime imaging with transparent oxygen optodes , 2001 .

[29]  D. Dabiri.  Digital particle image thermometry/velocimetry: a review , 2009 .

[30]  C. Lodeiro,et al.  Intramolecular excimer formation in a tripodal polyamine receptor containing three naphthalene fluorophores , 2003 .

[31]  G. Gillies,et al.  Remote thermometry with thermographic phosphors: Instrumentation and applications , 1997 .

[32]  Satoshi Someya,et al.  Preliminary study of two immiscible liquid layers subjected to a horizontal temperature gradient , 2003, J. Vis..

[33]  John P. Crimaldi,et al.  Planar laser induced fluorescence in aqueous flows , 2008 .