| 1. |
- Mahmoudi, J., et al.
(författare)
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An experimental and numerical study on the modelling of fluid flow, heat transfer and solidification in a copper continuous strip casting process
- 2003
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Ingår i: Materials transactions. - : Japan Institute of Metals. - 1345-9678 .- 1347-5320. ; 44:9, s. 1741-1751
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Tidskriftsartikel (refereegranskat)abstract
- An experimental and numerical study was carried out to investigate the solidification process in a copper continuous strip casting process. Heat flow and solidification process has been experimentally studied. Cooling curves during solidification were registered using a thermocouple of type K connected to a data acquisition system. Temperature measurements in the mould and cooling water were also performed. The numerical model considers a generalized set of mass, momentum and heat equations that is valid for the solid, liquid and solidification interval in the cast. A k - epsilon turbulence model, produced with the commercial program CFX, is used to analyse the solidification process of pure copper in the mould region of the caster. The fluid flow, temperature and heat flux distributions in the mould region of the caster were computed. The shape and location of the solidification front were also determined. The effects of the parameters such as heat transfer coefficient, casting speed, casting temperature. heat of fusion and specific heat on the shape and location of the solidification front and the heat transport at the mould-cast interface were investigated. The predicted temperature and heat flux distributions were compared with experimental measurements, and reasonable agreement was obtained.
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| 2. |
- Mahmoudi, J., et al.
(författare)
-
Modelling of fluid flow, heat transfer and solidification in the strip casting of a copper base alloy - (III). Solidification - a theoretical study
- 2001
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Ingår i: Scandinavian journal of metallurgy. - : Wiley. - 0371-0459 .- 1600-0692. ; 30:3, s. 136-145
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Tidskriftsartikel (refereegranskat)abstract
- A finite-volume model has been developed and applied to analyse the solidification process of pure copper in the mould region of a continuous strip casting machine. The model was produced with the commercial program GFX, which allows this non-linear, turbulent problem to be simulated using a modified version of the k-epsilon turbulence model. The fluid flow, temperature and heat flux distributions in the mould region of the easter were computed. The shape and location of the solidification front were also determined. The effects of operating parameters, such as casting speed, superheat and the assumed values for the latent heal of fusion on the shape and location of the solidification front were investigated.
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