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Chamorro, Leonardo Patricio Cheng, Jeffrey 2019-08-23T20:05:19Z 2019-08-23T20:05:19Z 2019-04-25 2019-05 Wind tunnel experiments were conducted to understand the turbulence-induced motions of a rigid at plate able to rotate at its quarter span. Dominant coherent motions that varied along the vertical direction were imposed on the incoming flow using a variety of tapered cylinders. Emphasis is placed on the effect of cylinder tapered ratio Rt= 6.4, 9.5 and 18.6, incoming flow velocity U0= 3, 4.6 and 6 m s􀀀1 and cylinder-plate spacing Ld=c 2[2, 8]. Results show that the plate oscillations is dominated by two distinct modes. One of them corresponds to the mean flow-induced oscillation frequency, fp, whereas the other is synchronized with the cylinder vortex shedding frequency, fv. The trends of these two frequencies is different with cylinder tapered ratio. The fv was proportional with Rt; however, fp was inversely proportional to Rt. Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2019-08-22 without embargo terms The student, Jeffrey Cheng, accepted the attached license on 2019-04-25 at 11:15. The student, Jeffrey Cheng, submitted this Thesis for approval on 2019-04-25 at 11:24. This Thesis was approved for publication on 2019-04-25 at 13:20. DSpace SAF Submission Ingestion Package generated from Vireo submission #13908 on 2019-08-22 at 14:46:44 Made available in DSpace on 2019-08-23T20:05:19Z (GMT). No. of bitstreams: 2 CHENG-THESIS-2019.pdf: 2464405 bytes, checksum: 7131150f9ecbd9a9cc3d8cf58f061090 (MD5) LICENSE.txt: 4210 bytes, checksum: 76daa04192d29df61d4ff4e5e8f04446 (MD5) Previous issue date: 2019-04-25 application/pdf http://hdl.handle.net/2142/104935 en Copyright 2019 Jeffrey Cheng flow-structure interactions, tapered cylinder, near-wake structure On the passive oscillations of a splitter plate in stratified turbulence text text Mechanical Sci & Engineering Mechanical Engineering University of Illinois at Urbana-Champaign Thesis M.S.