## 留言板

 引用本文: 陈家豪, 娄钦. 考虑接触角滞后性多孔介质内非混相驱替研究[J]. 应用数学和力学, 2021, 42(9): 900-914.
CHEN Jiahao, LOU Qin. An Investigation on the Immiscible Displacement in Porous Media With Contact Angle Hysteresis[J]. Applied Mathematics and Mechanics, 2021, 42(9): 900-914. doi: 10.21656/1000-0887.410278
 Citation: CHEN Jiahao, LOU Qin. An Investigation on the Immiscible Displacement in Porous Media With Contact Angle Hysteresis[J]. Applied Mathematics and Mechanics, 2021, 42(9): 900-914.

## 考虑接触角滞后性多孔介质内非混相驱替研究

##### doi: 10.21656/1000-0887.410278

###### 通讯作者: 娄钦(1984—)，女，博士(通讯作者. E-mail: louqin560916@163.com).
• 中图分类号: O357.1

## An Investigation on the Immiscible Displacement in Porous Media With Contact Angle Hysteresis

Funds:

The National Natural Science Foundation of China(51976128)

• 摘要: (接触角滞后性表现为前进和后退接触角不同, 其是润湿表面上两相流动中的重要现象.该文采用改进的伪势格子Boltzmann（LB）两相模型, 并与几何润湿边界条件相结合, 研究了接触角滞后性、毛细数以及几何结构对多孔介质内不混溶驱替过程的影响.数值结果表明:单渗透性多孔介质内相同毛细数下,保持后退角一定，驱替效率随着前进角的增大而增大;疏水和中性接触角滞后性窗口中, 驱替效率随滞后性窗口大小增大而减小.在亲水接触角滞后性窗口中, 接触角滞后性大小作用不明显;同等窗口大小下, 所有选取的亲水滞后性窗口驱替效率大于中性滞后性窗口, 中性滞后性窗口驱替效率大于疏水滞后性窗口.单渗透性多孔介质内相同接触角滞后性条件下,毛细数Ca越大, 驱替相在多孔介质内的指进现象越明显, 驱替效率越小.另外, 双渗透多孔介质中驱替相更易在高渗透性区域流动并率先突破边界, 驱替效率较单渗透性显著下降.
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##### 出版历程
• 收稿日期:  2021-01-15
• 修回日期:  2021-03-04
• 网络出版日期:  2021-09-29

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