科研之友
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摘要
A three-dimensional mathematical model has been developed to simulate turbulent fluid flow, heat transfer and solidification in the pool of a twin-roll strip caster. A Darcy-porosity approach was used to study the fluid flow within the mushy solidification zone in the pool. The effect of the heat transfer coefficient and permeability constant on the flow and solidification was also predicted. It was shown that an even flow and temperature distribution of the pool can be obtained by using a suitable feeding system. The heat transfer between the rolls and the solidifying metal has a big influence on the location of the solidification end point. The permeability of the mushy zone is a key factor which affects the flow and solidification in the twin-roll strip casting process.
