多孔介质模型的纤维球过滤器数值模拟

Numerical Simulation on Fiber Ball Filter for Porous Media Model

用多孔介质模型对纤维球过滤器内不同截泥量下的液相流场进行数值模拟,得到在过滤过程中截泥量-过滤速度-压降之间的关系,在反洗过程中截泥释放量-反洗速度-压降之间的关系。结果表明:在过滤过程中压降随着截泥量的增加呈现近似线性增加,压降随着过滤速度的增加呈现近似指数增加的趋势。

The energy accumulator pressure relief process at high temperature and pressure was dynamically simulated. The dynamic simulation result shows that increasing initial temperature and pressure can lead to the rise of accumulator＇ s final temperature and pressure; and under the research condition, the heat loss influ- ences the pressure relief process less ; the small error between HNE model＇ s predictive value and experimental result demonstrates that HNE model answers to this system.