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Capillarity-driven migration of small objects: A critical review
1Department of Engineering Mechanics, College of Pipeline and Civil Engineering, China University of Petroleum (East China), 266580, Qingdao, China. liujianlin@upc.edu.cn.
The European Physical Journal. E, Soft Matter
|January 7, 2019
Summary
Capillarity drives small object migration across interfaces. This review covers non-deformable and soft objects, analyzing interfacial tension and potential energy for migration insights.
Area of Science:
- Physics
- Materials Science
- Fluid Dynamics
Background:
- Capillarity-driven migration of small objects is a phenomenon of significant scientific and engineering interest.
- Understanding this migration is crucial for various industrial applications.
Purpose of the Study:
- To present a critical review of capillarity-driven migration phenomena.
- To analyze migration mechanisms for both non-deformable and soft objects at different interfaces.
Main Methods:
- Analysis of solid-fluid and fluid-fluid interfaces.
- Investigation of potential energy as a driving force for soft object migration.
- Identification of asymmetric factors influencing object migration.
Main Results:
- Migration is driven by asymmetric interfacial configurations and differences in interfacial tensions.
- Potential energy is a key factor for understanding soft object migration due to their deformability.
- Asymmetric factors are critical for initiating and sustaining object movement.
Conclusions:
- Capillarity-driven migration is a complex phenomenon influenced by object properties and interfacial characteristics.
- Insights into migration mechanisms can inform the design of microfluidics, cleaning technologies, and resource extraction processes.
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