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oai:www.ideals.illinois.edu:2142/83989 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Loth, Eric Felton, Keith Carnel 2015-09-25T21:13:02Z 2015-09-25T21:13:02Z 10000-01-01 1999 1999 Liquid forces acting on individual bubbles in this turbulent boundary layer were also explored. This task was accomplished by employing a cinematic Particle Image Velocimetry system. Quadruple-pulsed images were obtained in a temporal sequence, such that the instantaneous liquid velocity and bubble trajectories could be accurately determined. Bubble velocity, acceleration, and buoyancy force were obtained from the trajectory data. Analysis of the force results indicate that drag coefficient decreases with increasing Reynolds number, but decreases with increased turbulence intensity. The lift coefficient is much higher than creeping flow or inviscid theory and tends to decrease with increasing bubble Reynolds number. Made available in DSpace on 2015-09-25T21:13:02Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9953012.pdf: 4331725 bytes, checksum: 788c8556b809bc540b3fb0da2861e236 (MD5) Previous issue date: 1999 Embargo set by: Seth Robbins for item 85270 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 204 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1999. http://hdl.handle.net/2142/83989 (MiAaPQ)AAI9953012 eng Engineering, Marine and Ocean A Study of Spherical Bubbles in a Vertical Turbulent Boundary Layer text Mechanical Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.