{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/104935"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/104935","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"On the passive oscillations of a splitter plate in stratified turbulence","abstract":"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.","abstract_html":"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.","abstract_has_math":false,"creators":["Cheng, Jeffrey"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Chamorro, Leonardo Patricio"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-08-23T20:05:19Z","date_published":"2019-08-23T20:05:19Z","updated_at":"2026-07-22T22:24:42Z","subjects":["flow-structure interactions, tapered cylinder, near-wake structure"],"languages":["en"],"rights":["Copyright 2019 Jeffrey Cheng"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/104935","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Chamorro, Leonardo Patricio"]},{"key":"dc:creator","label":"Author","values":["Cheng, Jeffrey"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2019-08-23T20:05:19Z","2019-04-25","2019-05"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["flow-structure interactions, tapered cylinder, near-wake structure"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2019 Jeffrey Cheng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/104935"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["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"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["On the passive oscillations of a splitter plate in stratified turbulence"]}]}],"canonical_facts":{"dc:contributor":["Chamorro, Leonardo Patricio"],"dc:creator":["Cheng, Jeffrey"],"dc:date":["2019-08-23T20:05:19Z","2019-04-25","2019-05"],"dc:description":["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). 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