Borescopic Laser Doppler Velocimetry Probe

Abstract

Acoustic velocity V f Fluid velocity V fi Initial fluid velocity V p Particle velocity V pi Initial particle velocity V ps Particle settling velocity α Angle between shifted beam and non-shifted beam α b Divergence angle η Relative refractive index λ Wavelength of laser light Λ ac Acoustic wavelength μ g Fluid dynamic viscosity ρ p Particle density σ n Noise fluctuations σ s Signal fluctuations τ Relaxation time v ACKNOWLEDGMENTS I would like to first thank Dr. Semih Olcmen, my project director and committee chair, for his guidance on this project and for taking me in as a research assistant on such late notice my senior year. This project would not have been completed if not for all the long hours he put in with me over the summer. I would also like to thank Dr. John Baker and Dr. Brian Fisher for serving on my thesis committee. I would like to acknowledge the engineering machine shop in the design and construction of the components of the probe. Finally, I would like to thank The University of Alabama and the Department of Aerospace Engineering for the financial support they provided me with as a graduate student.