铝液负压渗流过程的模拟试验

An experimental investigation on simulation of negative pressure infiltration process of molten aluminium

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Froude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。

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.