Computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copper
In this research experiment computational fluid dynamic (CFD) models were constructed, within Ansys Fluent TM v.R1, to investigate phenomena occurring during the Vertically Upwards Continuous Casting (VUCC) of 8 mm diameter, oxygen free copper (OFCu) for alterations to the casting speed. The simulat...
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| Format: | Article |
| Language: | English |
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Elsevier
2021-02-01
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| Series: | Engineering Science and Technology, an International Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215098620342701 |
| _version_ | 1818655785007185920 |
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| author | Thomas D.A. Jones Richard I. Strachan David M. Mackie Mervyn Cooper Brain Frame Jan B. Vorstius |
| author_facet | Thomas D.A. Jones Richard I. Strachan David M. Mackie Mervyn Cooper Brain Frame Jan B. Vorstius |
| author_sort | Thomas D.A. Jones |
| collection | DOAJ |
| description | In this research experiment computational fluid dynamic (CFD) models were constructed, within Ansys Fluent TM v.R1, to investigate phenomena occurring during the Vertically Upwards Continuous Casting (VUCC) of 8 mm diameter, oxygen free copper (OFCu) for alterations to the casting speed. The simulated influence of heat transported over a 0.1 mm air gap formed within the casting die was investigated and a value for the die wall heat transfer coefficient (hc) of (9.0 ± 0.2) × 104 W/m2K, was extracted. Using this value for hc, simulations of the entire casting crucible and die were made for casting speed settings: pushback motion at 0.06 m/s, average; dwell motion (pause) at 0.05 m/s, average; and continuous motions at 0.022 m/s, 0.015 m/s and 0.008 m/s; and were validated against literature values for measured thermal distribution within the casting die. The fastest casting speed for 8 mm OFCu was investigated and a trend between simulated solidification front and measured grain growth direction was identified, highlighting, the casting motions pushback and dwell yield improved casting conditions. Fluid flow rate was investigated within the casting crucible and showed a small influence on casting due to natural convection relative to flow within the die, 0.001 ± 0.0005 m/s compared with 0.1 ± 0.01 m/s for pushback casting, respectively. |
| first_indexed | 2024-12-17T03:15:12Z |
| format | Article |
| id | doaj.art-cdad5269d8a44bdf88497a6a4dc69762 |
| institution | Directory Open Access Journal |
| issn | 2215-0986 |
| language | English |
| last_indexed | 2024-12-17T03:15:12Z |
| publishDate | 2021-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj.art-cdad5269d8a44bdf88497a6a4dc697622022-12-21T22:05:41ZengElsevierEngineering Science and Technology, an International Journal2215-09862021-02-0124192104Computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copperThomas D.A. Jones0Richard I. Strachan1David M. Mackie2Mervyn Cooper3Brain Frame4Jan B. Vorstius5University of Dundee, School of Science and Engineering, Dundee DD1 4NH,UK; Corresponding author.University of Dundee, School of Science and Engineering, Dundee DD1 4NH,UK; Rautomead Ltd, Dundee DD2 4UH, UKUniversity of Dundee, School of Science and Engineering, Dundee DD1 4NH,UKRautomead Ltd, Dundee DD2 4UH, UKRautomead Ltd, Dundee DD2 4UH, UKUniversity of Dundee, School of Science and Engineering, Dundee DD1 4NH,UKIn this research experiment computational fluid dynamic (CFD) models were constructed, within Ansys Fluent TM v.R1, to investigate phenomena occurring during the Vertically Upwards Continuous Casting (VUCC) of 8 mm diameter, oxygen free copper (OFCu) for alterations to the casting speed. The simulated influence of heat transported over a 0.1 mm air gap formed within the casting die was investigated and a value for the die wall heat transfer coefficient (hc) of (9.0 ± 0.2) × 104 W/m2K, was extracted. Using this value for hc, simulations of the entire casting crucible and die were made for casting speed settings: pushback motion at 0.06 m/s, average; dwell motion (pause) at 0.05 m/s, average; and continuous motions at 0.022 m/s, 0.015 m/s and 0.008 m/s; and were validated against literature values for measured thermal distribution within the casting die. The fastest casting speed for 8 mm OFCu was investigated and a trend between simulated solidification front and measured grain growth direction was identified, highlighting, the casting motions pushback and dwell yield improved casting conditions. Fluid flow rate was investigated within the casting crucible and showed a small influence on casting due to natural convection relative to flow within the die, 0.001 ± 0.0005 m/s compared with 0.1 ± 0.01 m/s for pushback casting, respectively.http://www.sciencedirect.com/science/article/pii/S2215098620342701CastingCopper alloyComputational fluid dynamicSimulationSolidificationGrain structure |
| spellingShingle | Thomas D.A. Jones Richard I. Strachan David M. Mackie Mervyn Cooper Brain Frame Jan B. Vorstius Computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copper Engineering Science and Technology, an International Journal Casting Copper alloy Computational fluid dynamic Simulation Solidification Grain structure |
| title | Computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copper |
| title_full | Computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copper |
| title_fullStr | Computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copper |
| title_full_unstemmed | Computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copper |
| title_short | Computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copper |
| title_sort | computational fluid dynamic simulations of solidification for enhancing speed of continuous cast copper |
| topic | Casting Copper alloy Computational fluid dynamic Simulation Solidification Grain structure |
| url | http://www.sciencedirect.com/science/article/pii/S2215098620342701 |
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