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Numerical simulation of mechanical interactions between liquid and solid phase in solidification processes

Abstract : Control of macrosegregation phenomena and deformation related defects is the main issue in solidification processes. Numerical modeling provides an answer to industrial needs to master these defects. One of the most critical and essential issues is the concurrent computation of fluid flow in the bulk liquid and stress-strain evolution in the already solidified regions. For this specific purpose, a partitioned solution algorithm is developed to model both ingot casting and continuous casting processes. Liquid flow induced by natural convection or filling step, solidification shrinkage and thermally induced deformation of the solid phase. On the basis of the resulting liquid and solid velocity fields, the transport of chemical species (macrosegregation) is achieved.
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Submitted on : Monday, July 13, 2020 - 10:48:18 AM
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  • HAL Id : tel-02897918, version 1

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Shaojie Zhang. Numerical simulation of mechanical interactions between liquid and solid phase in solidification processes. Mechanics of materials [physics.class-ph]. Université Paris sciences et lettres, 2020. English. ⟨NNT : 2020UPSLM004⟩. ⟨tel-02897918⟩

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