{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/83819"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/83819","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Transient Study of Turbulent Flow and Particle Transport During Continuous Casting of Steel Slabs","abstract":"Using the computed three-dimensional time-dependent flow velocities, the motion and capture of impurity particles during continuous casting were simulated using a Lagrangian approach. A criterion was developed to model particle pushing and capture by the solidifying shell and was incorporated into the particle transport model. The criterion was validated by reproducing experimental results in different systems. The particle transport model was applied to a full-scale water model and reproduced the measured particle removal fractions of 27 +/- 5% for 0--10s and 26 +/- 2% for 10--100s. The model was then applied to simulate the motion and capture of slag particles in a thin-slab steel caster. The magnitudes of the steady and unsteady forces acting on the particles. The simulations found that only about 8% of the small particles (10 and 40 microns) were safely removed by the top surface slag layer. However, a higher removal fraction of about 12--70% was found for the larger particles (100--400 microns). The computational results were processed to predict the ultimate distribution of impurity particles in the solid thin-slab. The results of this work confirm the important role of flow transients in the transport and capture of particles during continuous casting, and can serve as a benchmark for future simplified models.","abstract_html":"Using the computed three-dimensional time-dependent flow velocities, the motion and capture of impurity particles during continuous casting were simulated using a Lagrangian approach. A criterion was developed to model particle pushing and capture by the solidifying shell and was incorporated into the particle transport model. The criterion was validated by reproducing experimental results in different systems. The particle transport model was applied to a full-scale water model and reproduced the measured particle removal fractions of 27 +/- 5% for 0--10s and 26 +/- 2% for 10--100s. The model was then applied to simulate the motion and capture of slag particles in a thin-slab steel caster. The magnitudes of the steady and unsteady forces acting on the particles. The simulations found that only about 8% of the small particles (10 and 40 microns) were safely removed by the top surface slag layer. However, a higher removal fraction of about 12--70% was found for the larger particles (100--400 microns). The computational results were processed to predict the ultimate distribution of impurity particles in the solid thin-slab. The results of this work confirm the important role of flow transients in the transport and capture of particles during continuous casting, and can serve as a benchmark for future simplified models.","abstract_has_math":false,"creators":["Yuan, Quan"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Thomas, Brian G.","S. Pratap Vanka"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T21:12:18Z","date_published":"2015-09-25T21:12:18Z","updated_at":"2026-07-22T22:26:22Z","subjects":["Engineering, Metallurgy"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3153477"],"render_values":[{"text":"(MiAaPQ)AAI3153477","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/83819","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Thomas, Brian G.","S. 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A criterion was developed to model particle pushing and capture by the solidifying shell and was incorporated into the particle transport model. The criterion was validated by reproducing experimental results in different systems. The particle transport model was applied to a full-scale water model and reproduced the measured particle removal fractions of 27 +/- 5% for 0--10s and 26 +/- 2% for 10--100s. The model was then applied to simulate the motion and capture of slag particles in a thin-slab steel caster. The magnitudes of the steady and unsteady forces acting on the particles. The simulations found that only about 8% of the small particles (10 and 40 microns) were safely removed by the top surface slag layer. However, a higher removal fraction of about 12--70% was found for the larger particles (100--400 microns). The computational results were processed to predict the ultimate distribution of impurity particles in the solid thin-slab. The results of this work confirm the important role of flow transients in the transport and capture of particles during continuous casting, and can serve as a benchmark for future simplified models.","Made available in DSpace on 2015-09-25T21:12:18Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3153477.pdf: 11315159 bytes, checksum: acbd340591b8aadf9a1c0586cedc01fd (MD5) Previous issue date: 2004","Embargo set by: Seth Robbins for item 85100 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","195 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004."]},{"key":"dc:title","label":"Title","values":["Transient Study of Turbulent Flow and Particle Transport During Continuous Casting of Steel Slabs"]}]}],"canonical_facts":{"dc:contributor":["Thomas, Brian G.","S. Pratap Vanka"],"dc:creator":["Yuan, Quan"],"dc:date":["2015-09-25T21:12:18Z","10000-01-01","2004"],"dc:description":["Using the computed three-dimensional time-dependent flow velocities, the motion and capture of impurity particles during continuous casting were simulated using a Lagrangian approach. A criterion was developed to model particle pushing and capture by the solidifying shell and was incorporated into the particle transport model. The criterion was validated by reproducing experimental results in different systems. The particle transport model was applied to a full-scale water model and reproduced the measured particle removal fractions of 27 +/- 5% for 0--10s and 26 +/- 2% for 10--100s. The model was then applied to simulate the motion and capture of slag particles in a thin-slab steel caster. The magnitudes of the steady and unsteady forces acting on the particles. The simulations found that only about 8% of the small particles (10 and 40 microns) were safely removed by the top surface slag layer. However, a higher removal fraction of about 12--70% was found for the larger particles (100--400 microns). The computational results were processed to predict the ultimate distribution of impurity particles in the solid thin-slab. The results of this work confirm the important role of flow transients in the transport and capture of particles during continuous casting, and can serve as a benchmark for future simplified models.","Made available in DSpace on 2015-09-25T21:12:18Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3153477.pdf: 11315159 bytes, checksum: acbd340591b8aadf9a1c0586cedc01fd (MD5) Previous issue date: 2004","Embargo set by: Seth Robbins for item 85100 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","195 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004."],"dc:identifier":["http://hdl.handle.net/2142/83819","(MiAaPQ)AAI3153477"],"dc:language":["eng"],"dc:subject":["Engineering, Metallurgy"],"dc:title":["Transient Study of Turbulent Flow and Particle Transport During Continuous Casting of Steel Slabs"],"dc:type":["text"],"thesis:degree_discipline":["Mechanical Engineering"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:22Z"}