【摘要】 以流线为边界划分网格 ,建立了双辊薄带凝固过程的宏观传热模型、溶质传输模型和凝固组织形成的微观模型 ,并以固相分数为媒介 ,采用宏观和微观两个不同的时间步长 ,实现了宏观模型与微观模型的耦合 ,模拟结果与实际情况吻合较好更多还原

【Abstract】 The macroscopic heating, transmiting solute model and the microscopic model of solidification microstructure forming on twin roll thin strip casting process have been developed by using stream line interface, and the coupling between macroscopic and microscopic aspects has been carried out by solid fraction and macro micro time step. The simulated result agrees well with those obtained experimentally.更多还原