{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/67800"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/67800","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Examination of Fluid-Particle in Turbulent, Non-Dilute, Particle Suspension Flow","abstract":"Theoretical modeling and experimental studies of particles suspended in fully developed turbulent water flow in a vertical pipe (I.D. = 18.4 cm) have been conducted. An analytical model has been developed to predict the stochastic motion of particles in a non-dilute turbulent suspension flow. The model, incorporates hydrodynamic interaction between particles over a range of particle volume loadings and turbulent particle Reynolds numbers.","abstract_html":"Theoretical modeling and experimental studies of particles suspended in fully developed turbulent water flow in a vertical pipe (I.D. = 18.4 cm) have been conducted. An analytical model has been developed to predict the stochastic motion of particles in a non-dilute turbulent suspension flow. The model, incorporates hydrodynamic interaction between particles over a range of particle volume loadings and turbulent particle Reynolds numbers.","abstract_has_math":false,"creators":["Souza, Roberaldo Carvalho De"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Nuclear Engineering","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2014,"date_issued":"2014-12-14T06:26:18Z","date_published":"2014-12-14T06:26:18Z","updated_at":"2026-07-22T22:25:58Z","subjects":["Engineering, Nuclear"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI8127697"],"render_values":[{"text":"(UMI)AAI8127697","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/67800","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Souza, Roberaldo Carvalho De"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2014-12-14T06:26:18Z","10000-01-01","1981"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Nuclear 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, Nuclear"]}]},{"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/2142/67800","(UMI)AAI8127697"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Theoretical modeling and experimental studies of particles suspended in fully developed turbulent water flow in a vertical pipe (I.D. = 18.4 cm) have been conducted. An analytical model has been developed to predict the stochastic motion of particles in a non-dilute turbulent suspension flow. The model, incorporates hydrodynamic interaction between particles over a range of particle volume loadings and turbulent particle Reynolds numbers.","Three series of experiments have been conducted to investigate the behavior of particles in non-dilute turbulent suspension flow, for two particle densities and two particle sizes, and for several particle volume loadings ranging from 0 to 1 percent. The mean free fall velocity of the particles was determined at these various particle volume loadings, and the phenomenon of cluster formation was observed. The precise volume loading which gives the maximum relative settling velocity was observed to depend on particle density and size. Turbulent drag coefficients at various volume loadings were compared with several models and correlations in the literature. Particle dispersion was found to be sensitive to particle volume loading, increasing to a maximum near 0.5% and decreasing thereafter as the loading was increased.","Comparison of theoretical predictions to experimental observations of particle stochastic motion, in general, showed good agreement for both longitudinal and lateral directions in the water study. For dilute particle loadings the predicted particle velocity variance agreed with observation to better than ten percent for all cases. The predicted particle autocorrelations showed a slightly more rapid decrease than experimentally observed for the range of particle loadings studied. However, the predicted dispersions showed excellent agreement with experimental data for all particles over the range of particle loadings used. Comparison of predictions with limited experimental data of Snyder and Lumley for dilute suspensions in air showed equally good agreement.","Made available in DSpace on 2014-12-14T06:26:18Z (GMT). No. of bitstreams: 1 8127697.pdf: 4480809 bytes, checksum: 1df31a2e6515b3fd4a9bc5feb16dc5cd (MD5) Previous issue date: 1981","Embargo set by: Seth Robbins for item 67978 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","172 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1981."]},{"key":"dc:title","label":"Title","values":["Examination of Fluid-Particle in Turbulent, Non-Dilute, Particle Suspension Flow"]}]}],"canonical_facts":{"dc:creator":["Souza, Roberaldo Carvalho De"],"dc:date":["2014-12-14T06:26:18Z","10000-01-01","1981"],"dc:description":["Theoretical modeling and experimental studies of particles suspended in fully developed turbulent water flow in a vertical pipe (I.D. = 18.4 cm) have been conducted. An analytical model has been developed to predict the stochastic motion of particles in a non-dilute turbulent suspension flow. The model, incorporates hydrodynamic interaction between particles over a range of particle volume loadings and turbulent particle Reynolds numbers.","Three series of experiments have been conducted to investigate the behavior of particles in non-dilute turbulent suspension flow, for two particle densities and two particle sizes, and for several particle volume loadings ranging from 0 to 1 percent. The mean free fall velocity of the particles was determined at these various particle volume loadings, and the phenomenon of cluster formation was observed. The precise volume loading which gives the maximum relative settling velocity was observed to depend on particle density and size. Turbulent drag coefficients at various volume loadings were compared with several models and correlations in the literature. Particle dispersion was found to be sensitive to particle volume loading, increasing to a maximum near 0.5% and decreasing thereafter as the loading was increased.","Comparison of theoretical predictions to experimental observations of particle stochastic motion, in general, showed good agreement for both longitudinal and lateral directions in the water study. For dilute particle loadings the predicted particle velocity variance agreed with observation to better than ten percent for all cases. The predicted particle autocorrelations showed a slightly more rapid decrease than experimentally observed for the range of particle loadings studied. However, the predicted dispersions showed excellent agreement with experimental data for all particles over the range of particle loadings used. Comparison of predictions with limited experimental data of Snyder and Lumley for dilute suspensions in air showed equally good agreement.","Made available in DSpace on 2014-12-14T06:26:18Z (GMT). No. of bitstreams: 1 8127697.pdf: 4480809 bytes, checksum: 1df31a2e6515b3fd4a9bc5feb16dc5cd (MD5) Previous issue date: 1981","Embargo set by: Seth Robbins for item 67978 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","172 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1981."],"dc:identifier":["http://hdl.handle.net/2142/67800","(UMI)AAI8127697"],"dc:language":["eng"],"dc:subject":["Engineering, Nuclear"],"dc:title":["Examination of Fluid-Particle in Turbulent, Non-Dilute, Particle Suspension Flow"],"dc:type":["text"],"thesis:degree_discipline":["Nuclear Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:58Z"}