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Investigation into the selection of viewing configurations for three-component planar Doppler velocimetry measurements.

By Thomas O. H. Charrett, David S. Nobes and Ralph P. Tatam

Abstract

A method for the calculation of three orthogonal velocity components in planar Doppler velocimetry (PDV) using four or more measured velocity components (to the three typically used) is presented. The advantages and disadvantages are assessed by use of a Monte Carlo simulation and experimental measurements of the velocity field of a rotating disk. The addition of a fourth velocity component has been shown to lead to reductions in the final errors of up to 25%. The selection of viewing configurations for experiments is discussed by simulation of the level of errors in measured velocity components and investigation of the final level of errors in the orthogonal velocity components. Experimental measurements of the velocity field of a rotating disk are presented, demonstrating the effect of the viewing configuration on the final level of error

Topics: Instrumentation, measurement, and metrology, Velocimetry, Remote sensing and sensors, Laser Doppler velocimetry
Publisher: Osa Optical Society of America
Year: 2007
OAI identifier: oai:dspace.lib.cranfield.ac.uk:1826/1831
Provided by: Cranfield CERES
Journal:

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