Whole-field instantaneous 3D PIV measurement in air

Wing Kai A. Lee; L. S. Judge; Mark Burnett; Doina Daciana Udrea; Peter John Bryanston-Cross

doi:10.1117/12.293411

21 November 1997 Whole-field instantaneous 3D PIV measurement in air

Wing Kai A. Lee, L. S. Judge, Mark Burnett, Doina Daciana Udrea, Peter John Bryanston-Cross

Proceedings Volume 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III; (1997) https://doi.org/10.1117/12.293411
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

A 3D measurement is presented of both the in-plane and out- of-plane components of the flow field velocity of 0.5 micrometers styrene particles at 30 ms^-1 in air from a calibrated nozzle by using a co-linear side scattering PIV approach. The light sheet used to illuminate the particles was generated using a Nd:YAG laser, operating in triple pulse mode. The scattered light from the particle was imaged through a near diffraction limited lens. The particle images have been analyzed from both their respective diffraction patterns and from their out of focus intensity profile. The authors show that the co-linear 3D PIV method can be used to determine the particle velocity in three directions. Results have been presented for different flow angles through a calibration 30ms^-1 air jet, showing that it is possible to identify the particle position in three directions, within a turbulent flow, to a spatial accuracy of +/- 20 micrometers .

Citation Download Citation

Wing Kai A. Lee, L. S. Judge, Mark Burnett, Doina Daciana Udrea, and Peter John Bryanston-Cross "Whole-field instantaneous 3D PIV measurement in air", Proc. SPIE 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III, (21 November 1997); https://doi.org/10.1117/12.293411

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