발간논문

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Vol.34, No.10, 1353 ~ 1362, 1996
Title
Research Paper - Solidification - : Analysis of Melt Flow and Heat Transfer during Twin - Roll Strip Casting using BFC
김용희Yong Hee Kim, 이중의Jung Eui Lee, 최주태Ju Tae Choi, 오규환Kyu Hwan Oh, 윤종규Jong Kyu Yoon, 나형용Hyung Yong Ra
Abstract
A two-dimensional numerical model for the vertical twin-roll strip casting process has been developed. The boundary fitted coordinate (BFC) is employed to handle the complicate boundary geometry and the resultant transformed governing equations for the melt pool and roll are solved separately using the finite volume method based on control volume method. The effects of casting conditions of roll speed and superheat on the heat transfer and flow pattern were studied. As roll speed increased, the positions of solidification end point and stagnation point were lower and the temperature of the strip at the roll nip increased. The effects of superheat on the heat transfer and flow pattern were smaller than that of roll speed. The surface temperature of strip out of the roll nip increased due to reheating of strip and the temperature differences between surface and center of strip were in the range of 60∼80℃.
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