Droplet Impact Simulation is a vital way to investigate the liquid and superhydrophobic surface properties of materials. In this examination, the droplet are investigated chiefly dependent on the Cassie state and the Wenzel state. The VOF method is utilized for numerical reproduction to research the instrument of the droplet's effect on the finished surface and to present a basic and viable strategy to figure Contact edge to indicate surface hydrophobicity. The reenactment results demonstrate that the surface hydrophobicity can be adequately enhanced by planning distinctive smaller scale surface on the hydrophilic surface. With the expansion of speed, the consistent state contact edge of the finished surface is clearly diminished. What's more, by quantitatively examining the development of droplets on the miniaturized scale finished surface, it is discovered that the consistent state contact edge is identified with the base spreading width of the main droplet after effect, and the littler the distance across, the bigger the contact point.

Zhiru Yang, Chongchong Zhu and Nan Zheng. Droplet Impact Simulation of Hydrophobic Patterned Surfaces by Computed Fluid Dynamics. Academic Journal of Engineering and Technology Science (2018) Vol. 1: 49-55.

[1] S. Xie and Y. Wang (2014). Construction of tree network with limited delivery latency in homogeneous wireless sensor networks. Wireless Personal Communications, vol.78, no.1, p.231-246.
[2] S.-F. Ou, K.-K. Wang and Y.-C. Hsu (2017). Superhydrophobic NiTi shape memory alloy surfaces fabricated by anodization and surface mechanical attrition treatment, Applied Surface Science, vol.425, p.594-602.
[3] S. Cui, S. Lu, W. Xu, B. An and B. Wu (2017). Fabrication of robust gold superhydrophobic surface on iron substrate with properties of corrosion resistance, self-cleaning and mechanical durability”, Journal of Alloys and Compounds, vol.728, p.271-281.
[4] E. Shafrin and W. Zisman (1967). Critical surface tension for spreading on a liquid substrate, Journal of Physical Chemistry, vol.71, no.5, p.1309-1316
[5] B. Yilbas, A. Al-Sharafi, H. Ali and N. Al-Aqeeli (2017). Dynamics of a water droplet on a hydrophobic inclined surface: influence of droplet size and surface inclination angle on droplet rolling, RSC Advances, vol.7, no.77, p.48806-48818.
[6] Y. Zhang, H. Xia, E. Kim and H. Sun (2012). Recent developments in superhydrophobic surfaces with unique structural and functional properties, Soft Matter, vol. 8, no.44, p.11217-11231.
[7] S. Nguyen, H. Webb, P. Mahon, R. Crawford and E. Ivanova (2014). Natural insect and plant micro-/nanostructsured surfaces: an excellent selection of valuable templates with superhydrophobic and self-cleaning properties, Molecules, vol. 19, no.9, p.13614-30.
[8] J. Behrndt and H. Kreusler (2013). Spray impingement modeling: Evaluation of the dissipative energy loss and influence of an enhanced near-wall treatment, Fuel Processing Technology, vol. 107, no.3, and p.71-80.
[9] A. Moqaddam, S. Chikatamarla and I. Karlin (2017). Drops bouncing off macro-textured superhydrophobic surfaces, Journal of Fluid Mechanics, vol. 824, p.866-885.
[10] J. Quek, C. Magee and H. Low (2017). Physical texturing for superhydrophobic polymeric surfaces: a design perspective, Langmuir, vol. 33, no.27, p6902-6915
[11] H. Almohammadi and A. Amirfazli (2017). Asymmetric Spreading of a Drop upon Impact onto a Surface”, Langmuir, vol. 33, no. 23, p.5957-5964.