발간논문

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Vol.36, No.3, 410 ~ 416, 1998
Title
The Analysis of Fluid Flow and Hat Transfer in the Melt Puddle of Planar Flow Casting
김길호 , 오규환 , 나형용 Kiel Ho Kim , Kyu Hwan Oh , Hyung Yong Ra
Abstract
The fluid flow and heat transfer in the melt puddle of Fe_(78)B_(13)Si_9 amorphous strip on Planar Flow Casting process were analyzed by numerical method based on the Body Fitted Coordinates and Finite Volume Method. The necessary conditions for the existence of the solidification layer were that the thickness of solidified layer in the puddle should be less than that of strip, and the minimum temperature of puddle should be higher than that of solidified layer. The range and magnitude of heat transfer coefficient satisfying the necessary condition were decreased with increasing contact length. The magnitude of heat transfer coefficient was increased with increasing the size of gap between nozzle and roll. By the analysis of fluid flow characteristics, melt recirculation in downstream was found to be existed.
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