OALib Journal期刊
ISSN: 2333-9721
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合金凝固过程的传输模型
, PP. 35-40
Keywords: 合金,凝固,传输现象,数学模型
Abstract:
通过数学推导,对描述合金凝固过程传输现象的连续介质模型(Bennon和Incropera,1987),体积平均模型(Beckermann和Viskanta,1988),Porier模型(Poirier等人,1990-1991),以及柱状枝晶凝固模型(Schneider和Beckermann,1995)的质量,动量,能量,溶质守恒议程进行了比较,结果表明,基于各相密度,导热系数,比热容分别相等且为常数,以及渗透率各向同性,液相粘度为常数的假设,各模型的守恒方程均可以推导出相同的简化方程.
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