(1. 郑州大学物理工程学院，郑州 450052;
2. 东南大学材料系，南京210018)
摘 要: 根据相似原理，采用模拟试验的方法研究了与铝液相似的模拟液在负压作用下的渗流动力学规律。实验得到控制铝液渗流过程的相似准则为：对直径1.5～3.5mm的颗粒介质为Froud e准则，对直径0.5mm的颗粒介质为Reynolds准则。在相似准则指导下，原型铝液和模型中模拟液的渗流过程是相似的。
关键字: 负压渗流；相似原理；模拟试验；铝液
（1. School of Applied Physics, Zhengzhou University, Zhengzhou 450052, P.R.China ;
2. Department of Materials Science, Southeast University, Nanjing 210018, P.R.China）
Abstract:The infiltration dynamics of simulant liquid under negative pressure was studied by simulation test in accordance with the laws of similitude. It showed that the criterion of similarity which controls the infiltration of fluids is Reynolds criterion for fillers of diameter 0.5 mm, Froude criterion for fillers of diameter 1.5～3.5 mm. On the basis of similarity criterion, the infiltration process of molten aluminum in the prototype is similar to that of simulant liquid in the model.
Key words: negative pressure infiltration; laws of similarity; simulation test; molten aluminum
