摘要
对砂粒堆积床这一自然多孔介质的结构特性及孔道网络干燥模型进行了描述,并对砂粒堆积床结构参数与孔道网络模型参数进行了对应分析;建立了堆积床的孔道网络模型,并利用该模型进行了砂堆积床干燥过程的孔道网络模拟;模拟的结果与干燥实验数据进行了验证。
Structural characteristics of a sandy bed, namely a natural porous media, and a pore network model were analyzed and a set of structural parameters of a pore network model corresponding to a sandy bed was determined. Based on the theory of invasion percolation, a pore network model was established and a slowly isothermal drying process of a sandy bed was simulated by the model. The simulation results showed that the inner structural parameters of a natural porous media had a great influence on its drying process.
关键词
砂粒堆积床
干燥
孔道网络模型
参数对应
模拟
sandy bed
drying
pore network model
parameter corresponding
Simulation
