基于LBM-IBM-DEM多孔介质内双/三颗粒迁移特性研究

被引:0
|
作者
沈小又
朱康宁
佛斌
蔡杰
席剑飞
顾中铸
机构
[1] 南京师范大学能源与机械工程学院
关键词
多孔介质; 格子Boltzmann方法; 孔隙率; 穿透率;
D O I
暂无
中图分类号
O35 [流体力学];
学科分类号
080103 ; 080704 ;
摘要
本文为构建数值模拟模型,通过格子Boltzmann法求解液相流场,在模拟中采用IBM和DEM描述细颗粒在拉格朗日坐标下的受力、运动、碰撞和轨迹追踪,通过模拟双/三颗粒在多孔介质内的迁移,研究细颗粒之间的相互干涉,结果表明细颗粒在多孔介质内的迁移受到其他细颗粒的干涉,该干涉依赖于介质内的流体,当一个细颗粒堵塞时,压力分布会重新调整影响其他细颗粒的迁移,同时其他细颗粒的存在可促进或阻碍细颗粒在多孔介质内的迁移。
引用
收藏
页码:164 / 169
页数:6
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