摘要
本文根据相似原理对粘度不同的液态铝在多孔介质中的低压向上渗流过程进行了模拟试验研究。试验表明，渗流液面以平面沿铅垂方向推进，并满足次方根规律；某一时刻ｔ的雷诺数、阻力系数和沿程损失可用相应的公式计算；液态铝的温度（即粘度）在一定范围的变化对渗流速度的影响不大。实验还将模拟充填时间与原型充填时间进行了对比，两者得到了良好的一致性。
The process of molten aluminium infiltration with different viscosity in porous medium under low-pressure was investigated through organic transport material simulation based on the principle of similarity. Experiments indicate that the plane surface of infiltrating liquid advances perpendicularly and conforms to the law of fourth root.At a certain time t,the Reynold's number Re(t),the resistance coefficient λ(t) and the pressure lose can be calculated by corresponding formulas. It is found that the temperature t(or viscosity)changes of molten aluminium in a certain range exert a little influence on the infiltration velosity. The filling time in the simulater was compared with that for prototype, both being in good agreement.
出处
《工程力学》
EI
CSCD
1994年第4期115-121,共7页
Engineering Mechanics
基金
国家自然科学基金
省科委基金资助
