Proceedings

EPJE Topical Review: how capillarity drives the movement of small objects

Moving around small objects using capillary forces is a phenomenon that has stimulated scientists trying to understand the fundamental mechanisms at play. It is also important for many industrial, technological and analytical processes, for example micro-fluidics, oil and gas displacement, mineral flotation, miniature robot and biomechanics. In this EPJ E topical review article Jianlin Liu and Shanpeng Li present a critical review of capillarity-driven migration in which many examples are presented and explained. The small objects in question are non-deformable objects, such as particles, rods, disks and metal sheets as well as soft objects, such as droplets and bubbles. The authors clarify some misunderstandings on the conventional views on these systems.

Two types of interfaces are taken in consideration: the solid-fluid interface and the fluid-fluid interface. Due to the easily deformable properties of the soft objects and distorted interfacial shapes induced by small objects, a convenient way to obtain the driving force is through the potential energy of the system. The asymmetric factors causing the object migration include the asymmetric configuration of the interface, and the difference between the interfacial tensions. Finally, the author offer an outlook on the potential applications of small object migration.

I thank you very much for all suggestion and help during the various steps of the procedure and contacts regarding the preparation of documents, articles and information for the publication of the DHF 2014 Conference proceedings in EPJ Web of Conferences vol.96 (2015) of the EDP sciences publisher. It is the second time in the last two years that we decided to choose your journal for the proceedings publication of our conference and symposium, and we are glad for the experience had with your staff and also for the importance of your journal in order to support our conferences and for the dissemination of our scientific activity. I am also very glad for the prompt publication and it is an honour for our organization to have such a publication on your journal.

Giorgio Giardina, Messina University - INFN Catania, Italy
Scientific Secretary of the MESON Conference series, EPJ Web of Conferences vol. 96, 2015

ISSN: 2100-014X (Electronic Edition)

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