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U of I Only Restriction Lifted for Item 112217 on 2021-08-24T09:15:10Z. application/pdf http://hdl.handle.net/2142/105098 Chamorro, Leonardo P. Shen, Shikun 2019-08-23T20:36:12Z 2019-08-23T20:36:12Z 2021-08-24T09:15:10Z 2019-04-25 2019-05 This thesis focuses on laboratory experiments of turbulent Rayleigh Benard convection. Emphasis is placed on describing the Lagrangian dynamics of thermally-strati ed flows at Rayleigh numbers Ra = 2.8*10^9 and 1.1*10^10 for aspect ratios of 1.2, and 2. For this purpose, three-dimensional particle tracking velocimetry (3D-PTV) was used to characterize the three-dimensional Lagrangian paths of tracer particles in RB. The work also provides a general methodology for data pre-processing along with flow data post-processing. Lagrangian statistics including velocity and acceleration possibility density functions as well as pair dispersion are explored in detail. Inspection of the dynamics of buoyant particles, namely bubbles, are also discussed. Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2021-05-01 The student, Shikun Shen, accepted the attached license on 2019-04-25 at 11:27. The student, Shikun Shen, submitted this Thesis for approval on 2019-04-25 at 11:36. This Thesis was approved for publication on 2019-04-25 at 17:05. DSpace SAF Submission Ingestion Package generated from Vireo submission #13910 on 2019-08-22 at 15:08:37 Made available in DSpace on 2019-08-23T20:36:12Z (GMT). No. of bitstreams: 2 SHEN-THESIS-2019.pdf: 5771135 bytes, checksum: 352be323a5738db53f62868b65a95056 (MD5) LICENSE.txt: 4208 bytes, checksum: f649c6ca489d3baed462504c185c947e (MD5) Previous issue date: 2019-04-25 Embargo set by: Seth Robbins for item 112217 Lift date: 2021-08-23T20:36:18Z Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system en Copyright 2019 Shikun Shen Lagrangian PTV Rayleigh Benard convection Lagrangian dynamics of turbulent Rayleigh-Benard convection text text Mechanical Sci & Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Thesis M.S.