{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/83432"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/83432","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Fall Velocity of Rigid Sphere in Asymmetrically Oscillating Fluid","abstract":"Suspended sediment, occurring generally in the earth's water and air environment, is important to land-form development and water and air pollution control. A basic question on sediment suspension in nature fluid body is why the sediment particles do not settle down even though they are heavier than the surrounding fluid. Among the different plausible suggestions, one possible explanation is that flow oscillation provides a mechanism to keep the sediment particle in suspension. An analytic-numeric study has been carried out to investigate the settling behavior of a rigid homogeneous sphere in a vertically oscillating fluid, particularly to identify the oscillation-induced levitation condition at which a particle responds to the vertically oscillating fluid so that the net gravity force is completely neutralized and the particle merely oscillates about a fixed level. Applicability of the analytic-numeric study is tested by using experimental data obtained in the present research as well as by other previous researches.","abstract_html":"Suspended sediment, occurring generally in the earth's water and air environment, is important to land-form development and water and air pollution control. A basic question on sediment suspension in nature fluid body is why the sediment particles do not settle down even though they are heavier than the surrounding fluid. Among the different plausible suggestions, one possible explanation is that flow oscillation provides a mechanism to keep the sediment particle in suspension. An analytic-numeric study has been carried out to investigate the settling behavior of a rigid homogeneous sphere in a vertically oscillating fluid, particularly to identify the oscillation-induced levitation condition at which a particle responds to the vertically oscillating fluid so that the net gravity force is completely neutralized and the particle merely oscillates about a fixed level. Applicability of the analytic-numeric study is tested by using experimental data obtained in the present research as well as by other previous researches.","abstract_has_math":false,"creators":["Chang, Tsang-Jung"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Civil Engineering","degree_department":null,"school":null,"contributors":["Ben Chie Yen"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T21:04:52Z","date_published":"2015-09-25T21:04:52Z","updated_at":"2026-07-22T22:26:21Z","subjects":["Engineering, Civil"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI9737069"],"render_values":[{"text":"(MiAaPQ)AAI9737069","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/83432","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Ben Chie Yen"]},{"key":"dc:creator","label":"Author","values":["Chang, Tsang-Jung"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T21:04:52Z","10000-01-01","1997"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Civil Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"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":["Engineering, Civil"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/83432","(MiAaPQ)AAI9737069"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Suspended sediment, occurring generally in the earth's water and air environment, is important to land-form development and water and air pollution control. A basic question on sediment suspension in nature fluid body is why the sediment particles do not settle down even though they are heavier than the surrounding fluid. Among the different plausible suggestions, one possible explanation is that flow oscillation provides a mechanism to keep the sediment particle in suspension. An analytic-numeric study has been carried out to investigate the settling behavior of a rigid homogeneous sphere in a vertically oscillating fluid, particularly to identify the oscillation-induced levitation condition at which a particle responds to the vertically oscillating fluid so that the net gravity force is completely neutralized and the particle merely oscillates about a fixed level. Applicability of the analytic-numeric study is tested by using experimental data obtained in the present research as well as by other previous researches.","Made available in DSpace on 2015-09-25T21:04:52Z (GMT). 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A basic question on sediment suspension in nature fluid body is why the sediment particles do not settle down even though they are heavier than the surrounding fluid. Among the different plausible suggestions, one possible explanation is that flow oscillation provides a mechanism to keep the sediment particle in suspension. An analytic-numeric study has been carried out to investigate the settling behavior of a rigid homogeneous sphere in a vertically oscillating fluid, particularly to identify the oscillation-induced levitation condition at which a particle responds to the vertically oscillating fluid so that the net gravity force is completely neutralized and the particle merely oscillates about a fixed level. Applicability of the analytic-numeric study is tested by using experimental data obtained in the present research as well as by other previous researches.","Made available in DSpace on 2015-09-25T21:04:52Z (GMT). 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