毛细管泡的多相流中的泡粒子动力学在一个多孔的微型模型中
Omotola Okesanjo1, Guillaume Aubry1, Sven Behrens1,2
1School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA. hang.lu@chbe.gatech.edu.
Lab on a chip
|September 23, 2023
概括
无表面活性剂的毛细体泡 (CFs) 在多孔介质中表现出显著的耐油性和独特的流动动力学. 这些泡可以在微孔的环境中导航,由于流路的重新配置,可以提高石油回收的潜力.
科学领域:
- 合体和表面科学科学
- 流体动力学 流体动力学
- 孔隙介质物理 孔隙介质物理
背景情况:
- 无表面活性剂的毛细体泡 (CFs) 具有耐油性和独特的稳定性,这是由于颗粒-油涂层和毛细体网络.
- 了解多孔介质中的CF动态对于增强石油回收等应用至关重要.
研究的目的:
- 通过一个多孔的微模型来研究CFs的流动力学.
- 描述泡的行为和识别微孔环境中的流动现象.
主要方法:
- 在一个多孔的微型模型中,CFs的流动可视化.
- 分析气泡动力学和泡风湿学.
- 量化泡回收和流道演变的量化.
主要成果:
- CFs可以通过微孔介质流动,超过值流速的80%的回收率.
- CF流动不稳定,其特点是表面粘度增加,可重新配置的路径和间歇性堵塞.
- 在CF中,泡生成和破坏机制与经典泡中的机制相似,孔隙介质有助于均的泡大小.
结论:
- 多孔介质在CF泡形成和流道重新配置中起着关键作用.
- 由于其能够调整流程并保持无表面活性剂的泡完整性,CF显示了增强石油回收的潜力.
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