TY - JOUR
TI - Numerical study on dynamic wettability of micro-structure surface
AU - Han Shuang
AU - Yang Lixin
AU - Yang Runhua
AU - Tian Zihao
JN - Thermal Science
PY - 2019
VL - 23
IS - 14
SP - 1241
EP - 1249
PT - Article
AB - Wettability plays a vital role in many fields. In this paper, the  shortcomings of current experimental measurement of dynamic wetting  characteristics are described. The dynamic wettability of droplets on the  simplified triangular wave micro-structure surface is studied by volume of  fluid method. The results are compared with the dynamic wettability of  droplets on the smooth surface and the rectangular wave micro-structure  surface. The results show the similarities and differences of the motion  characteristics of droplets on smooth surface and different micro-structure  surface. Under the action of volume force, the droplets are first deformed  and then moved. The droplets move as a whole on the smooth surface. But the  droplets partially slip on the micro-structure surface, and the three-phase  contact point on the left side does not move.