| Autor: |
El Ganaoui, Mohammed, El Jouad, Mohamed, Bennacer, Rachid, Nunzi, Jean-Michel, Abbaspour, Nima, Beltrame, Philippe, Néel, Marie-Christine, Schulz, Volker |
| Zdroj: |
European Physical Journal - Applied Physics; Sep2020, Vol. 91 Issue 3, p1-6, 6p |
| Abstrakt: |
Liquid film or drop wicking on solid surface without any external energy input is highly desirable in specific industrial processes. This paper proposes a numerical study of the dynamics of liquid wicking on geometrically structured flat surface. We consider structures deduced from flat surface by super-imposing a series of identical parallel channels, the ensemble being made of the same material. Channels exhibit arrow-shaped patterns. We analyse drop wicking on such a structure using numerical simulation and experiment. Both approaches reveal non symmetric wicking clearly exhibiting a privileged direction. The simulation captures the evolution of the liquid/air interface at smaller time scales and reveals wicking with rapid pulses suggested by the experiment. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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