Fluid velocity measurement by processing images of neutrally-buoyant, phosphorescent tracer particles

Persistent Link:
http://hdl.handle.net/10150/276607
Title:
Fluid velocity measurement by processing images of neutrally-buoyant, phosphorescent tracer particles
Author:
McCay, JoAnn Margaret, 1962-
Issue Date:
1987
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A technique for measuring fluid velocities by means of neutrally-buoyant, phophorescent particles was investigated in a small-scale water jet facility. A nitrogen laser briefly illuminated the flow, exciting only those particles resident within the pulsed beam. The particles luminesce for a short while following excitation, during which time they also move with the flow. This creates a visible particle streak, the intensity of which decays along the direction of motion. A strobe illuminates the particles again a known time following the laser pulse. The magnitude and direction of a particle's velocity in the plane of view are deduced from an image of it streak captured by a video camera and recorded by a digital image processing system.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Fluid dynamic measurements.; Gas lasers.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Aerospace and Mechanical Engineering
Degree Grantor:
University of Arizona
Advisor:
Glezer, Ari

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleFluid velocity measurement by processing images of neutrally-buoyant, phosphorescent tracer particlesen_US
dc.creatorMcCay, JoAnn Margaret, 1962-en_US
dc.contributor.authorMcCay, JoAnn Margaret, 1962-en_US
dc.date.issued1987en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractA technique for measuring fluid velocities by means of neutrally-buoyant, phophorescent particles was investigated in a small-scale water jet facility. A nitrogen laser briefly illuminated the flow, exciting only those particles resident within the pulsed beam. The particles luminesce for a short while following excitation, during which time they also move with the flow. This creates a visible particle streak, the intensity of which decays along the direction of motion. A strobe illuminates the particles again a known time following the laser pulse. The magnitude and direction of a particle's velocity in the plane of view are deduced from an image of it streak captured by a video camera and recorded by a digital image processing system.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectFluid dynamic measurements.en_US
dc.subjectGas lasers.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineAerospace and Mechanical Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorGlezer, Arien_US
dc.identifier.proquest1332471en_US
dc.identifier.oclc19335065en_US
dc.identifier.bibrecord.b16757294en_US
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