Morphology of gas cavities on patterned hydrophobic surfaces under reduced pressure
Morphology of gas cavities on patterned hydrophobic surfaces under reduced pressure
复制标题
减压下图案化疏水表面上气腔的形态
DOI:
10.1063/1.4931674
复制
发表时间:
2015-09
影响因子:
4.6
通讯作者:
Duan, H. L.
中科院分区:
文献类型:
--
作者:
Liu, Y.;Shi, Y. P.;Lin, H.;Duan, H. L.
Gas cavities trapped on structured hydrophobic surfaces play important roles in realizing functionalities such as superhydrophobicity, drag reduction, and surface cleaning. The morphology of the cavities exhibits strong dependence on system parameters which impact the performance of these surfaces. In this work, a complete theoretical analysis is presented to predict cavity morphological change under reduced liquid pressure, on a submerged hydrophobic surface patterned with cylindrical pores. Equilibrium solutions are derived for five different phases, namely, (I) pinned recession, (II) depinned recession, (III) Cassie-Baxter, (IV) expansion, and (V) coalescence; their stabilities are also analyzed. A phase map is developed outlining the different regimes with respect to the gas amount and liquid pressure. Importantly, phase (IV) exhibits a complex stability behavior that leads to two possible routes to coalescence, which lends two different mechanisms of cavitation. Accordingly, the threshold pressure fo...
登录
查看更多内容
影响因子:
2.4
作者:
D. Yount
通讯作者:
D. Yount
影响因子:
8.6
作者:
Hyvaluoma, Jari;Harting, Jens
通讯作者:
Harting, Jens
影响因子:
8.6
作者:
Vakarelski, Ivan U.;Marston, Jeremy O.;Thoroddsen, Sigurdur T.
通讯作者:
Thoroddsen, Sigurdur T.
影响因子:
4.6
作者:
Morch, K. A.
通讯作者:
Morch, K. A.
影响因子:
2.3
作者:
Patankar, Neelesh A.
通讯作者:
Patankar, Neelesh A.