2026-09-20T07:24:52Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/49686 2023-07-11 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

Thomas, Brian G. Jonayat, A.S.M. 2014-05-30T17:04:49Z 2014-05-30T17:04:49Z 2016-09-22T20:59:15Z 2014-05 2014-05-30T17:04:49Z 2014-05 The behavior of the slag layer between the oscillating mold wall, the slag rim, the slag/liquid steel interface, and the solidifying steel shell, are of immense importance for the surface quality of continuous-cast steel. A computational model of the meniscus region has been developed, that includes transient heat transfer, multi-phase fluid flow, solidification of the slag, and movement of the mold during an oscillation cycle. First, the model is applied to a lab experiment done with a “mold simulator” to verify the transient temperature-field predictions. Next, the model is verified by matching with available literature and plant measurements of slag consumption. A reasonable agreement has been observed for both temperature and flow-field. The predictions show that transient temperature behavior depends on the location of the thermocouple during the oscillation relative to the meniscus. Finally, the model is applied to conduct a parametric study on the effect of casting speed, stroke, frequency, and modification ratio on slag consumption. Slag consumption per unit strand area increase with increase of stroke and modification ratio, and decreases with increase of casting speed while the relation with frequency is not straightforward. The match between model predictions and literature trends suggests that this methodology can be used for further investigations. Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2014-04-28T19:43:52Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Jonayat_ASM.pdf: 9203412 bytes, checksum: 6b581b213b9a98e33d7a6b4b6d8d7a8c (MD5) Made available in DSpace on 2014-05-30T17:04:49Z (GMT). No. of bitstreams: 2 ASM_Jonayat.pdf: 9203236 bytes, checksum: 4a5c429e926573a0d557568164c6d5e3 (MD5) license.txt: 4061 bytes, checksum: bcd2a250f6c8c9354d97c7b01dce34c5 (MD5) Restriction data tranferred 2014-07-01T11:38:37-05:00 Original Data Group with Access UIUC Users [automated] Release Date: 2016-05-30 12:09:03 UTC Reason: Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Seth Robbins (robbins.sd@gmail.com) on 2014-05-30T17:09:34Z Item is restricted until 2016-05-30T17:09:03Z U of I Only Restriction Lifted for Item 49737 on 2016-09-22T20:59:15Z. http://hdl.handle.net/2142/49686 en Copyright 2014 A. S. M. Jonayat Continuous casting Computational model Mold powder Slag Flux Solidification Consumption Casting parameters Over flow Heat transfer Multi-phase flow Volume of fluid (VOF) interface Transient thermo-fluid model of meniscus behavior and slag consumption in steel continuous casting text Mechanical Sci & Engineering 1917 Mechanical Engineering 0133 University of Illinois at Urbana-Champaign Thesis M.S. MS:Mechanical Engineerng -UIUC 10KS0133MS