Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle
Dissertation (MEng (Mechanical Engineering))--University of Pretoria, 2007.
Saved in:
| Other Authors: | |
|---|---|
| Format: | Thesis |
| Published: |
University of Pretoria
2013
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613469877993472 |
|---|---|
| access_status_str | Open Access |
| author2 | Craig, K.J. (Kenneth) |
| author_browse | Craig, K.J. (Kenneth) |
| author_facet | Craig, K.J. (Kenneth) |
| collection | Thesis |
| dc_rights_str_mv | © 2005, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng (Mechanical Engineering))--University of Pretoria, 2007. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/26212 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:36:39.169Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/26212 CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle Craig, K.J. (Kenneth) gideon@saltuspoles.co.za De Wet, Gideon Jacobus Parametric studies Cfd validation and verification with water modelli Scaled water model Cfd modelling Mathematical optimisation Submerged entry nozzle (sen) Mould Continuous casting UCTD Dissertation (MEng (Mechanical Engineering))--University of Pretoria, 2007. In the continuous casting of steel, the Submerged Entry Nozzle (SEN), in particular the SEN geometry, has a primary influence on the flow pattern: the SEN controls the speed, direction and other characteristics of the jet entering the mould. The SEN is however relatively inexpensive to change (in comparison with other continuous casting equipment). Thus; there is a feasible incentive to exactly understand and predict the flow of molten steel through the SEN and into the mould, in order to maximise the quality of the steel by altering the design of the SEN. By changing the SEN geometry and SEN design, the flow pattern in the mould will also change: it is thus possible to obtain an optimum SEN design if (or when) the desired flow patterns and/or certain predetermined temperature distributions are achieved. Expensive and risky plant trials were traditionally utilised to “perfect” continuous casting processes. As opposed to the plant trials, this dissertation is concerned with the Computational Fluid Dynamics (CFD) modelling of the SEN and mould, which, when used in conjunction with the Mathematical Optimiser LS-OPT, will enable the optimisation of the SEN design to achieve desired results. The CFD models are experimentally verified and validated using 40%-scaled (designed and built in-house) and full-scale water model tests. This dissertation proves that the CFD modelling of the SEN and mould can be quite useful for optimisation and parametric studies, especially when automated model generation (geometry, mesh and solution procedures) is utilised. The importance of obtaining reliable and physically correct CFD results is also emphasised; hence the need for CFD model verification using water modelling. Mechanical and Aeronautical Engineering unrestricted 2013-09-07T03:51:12Z 2006-02-01 2013-09-07T03:51:12Z 2005-07-05 2007-02-01 2006-01-31 Dissertation De Wet, G 2005, CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle, MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/26212 > http://hdl.handle.net/2263/26212 http://upetd.up.ac.za/thesis/available/etd-01312006-141026/ © 2005, University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf application/pdf University of Pretoria |
| spellingShingle | Parametric studies Cfd validation and verification with water modelli Scaled water model Cfd modelling Mathematical optimisation Submerged entry nozzle (sen) Mould Continuous casting UCTD CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle |
| title | CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle |
| title_full | CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle |
| title_fullStr | CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle |
| title_full_unstemmed | CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle |
| title_short | CFD Modelling and Mathematical Optimisation of a Continuous Caster Submerged Entry Nozzle |
| title_sort | cfd modelling and mathematical optimisation of a continuous caster submerged entry nozzle |
| topic | Parametric studies Cfd validation and verification with water modelli Scaled water model Cfd modelling Mathematical optimisation Submerged entry nozzle (sen) Mould Continuous casting UCTD |
| url | http://hdl.handle.net/2263/26212 http://upetd.up.ac.za/thesis/available/etd-01312006-141026/ |