改进的聚合物结晶相场模型及数值模拟Improved Polymer Crystal Phase Field Model and Numerical Simulation
王志凤,杨斌鑫
摘要(Abstract):
聚合物结晶已有的相场模型中包含了许多缺乏实际物理意义的参数,通过调整参数的取值虽然可以得到与实验相一致的结果,但与实验结果的条件无法对应。建立了新的相场模型,不需要调整界面厚度、噪声、模型等缺乏物理意义的参数取值,仅通过调整潜热就可以模拟出等规聚苯乙烯结晶的各种形态,如:枝晶、球晶、片晶等。使用有限差分法对该模型进行了求解,再使用Tecplot软件对数据可视化,得到了与实验相一致的结果。
关键词(KeyWords): 相场模型;潜热;有限差分法;聚合物;数值模拟
基金项目(Foundation): 国家自然科学基金(11701406)
作者(Author): 王志凤,杨斌鑫
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