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oai:www.ideals.illinois.edu:2142/88245 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Chamorro, Leonardo P Kim, Jin-Tae 2015-09-29T21:02:48Z 2015-09-29T21:02:48Z 2017-09-30T09:15:35Z 2015-08 2015-06-09 2015-8 Three-dimensional particle tracking velocimetry (3D-PTV) is a flow measure- ment technique that tracks the Lagrangian paths of a set of particles using photogrammetric principles. This technique allows to investigate complex fluid flows by measuring velocity and acceleration along particle trajectories. Implementing and optimizing the technique is, however, a somewhat di - cult task involving accurate optical set-up, volumetric illumination, precise calibration and rigorous post-processing. This thesis explains thorough guidelines to accomplish an optimal system set-up by discussing the hardware configuration, software operation, and post processing methods. First, this paper describes the system background for an e cient experimental set-up, such as the required camera specification, an accurate calibration method, an appropriate type of tracer particles and the illumination source. Then, the detailed usage of the 3D-PTV software, including the compilation and operation, with a description of file structures are discussed. To further utilize the output data, post-processing methods developed by Dr.Alex Liberzon, Dr.Beat Luthi and the author, which in- terpret the data both in Eulerian and Lagrangian frames, are explained. A circular jet flow is analyzed as demonstration of the technique. Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2017-08-01 The student, Jin Tae Kim, accepted the attached license on 2015-06-05 at 14:59. The student, Jin Tae Kim, submitted this Thesis for approval on 2015-06-05 at 15:06. This Thesis was approved for publication on 2015-06-09 at 13:17. DSpace SAF Submission Ingestion Package generated from Vireo submission #8268 on 2015-09-29 at 15:05:09 Made available in DSpace on 2015-09-29T21:02:48Z (GMT). No. of bitstreams: 2 KIM-THESIS-2015.pdf: 15912873 bytes, checksum: dd3411d591a748c808024488a7bb59d3 (MD5) LICENSE.txt: 4208 bytes, checksum: bac0b3565869ff0fdcfc396fe1c1bab2 (MD5) Previous issue date: 2015-06-09 Embargo set by: Seth Robbins for item 89525 Lift date: 2017-09-29T21:03:28Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Embargo set by: Seth Robbins for item 89525 Lift date: 2017-09-29T21:08:35Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Limited Restriction Lifted for Item 89525 on 2017-09-30T09:15:35Z. application/pdf http://hdl.handle.net/2142/88245 en Copyright 2015 Jin-Tae Kim Flow visualization Jet flow Lagrangian frame Particle tracking velocimetry Turbulence Three-dimensional particle tracking velocimetry for turbulence applications text text Mechanical Science & Engineering Theoretical & Applied Mechanics University of Illinois at Urbana-Champaign Thesis M.S.