Abstract
The purpose of this thesis is to simulate the behavior of a nano water droplet on a platinum substrate based on molecular dynamics. By finding appropriate potential energies for water-water, water-platinum and platinum-platinum, we may build up a simulation system to investigate the wetting behavior between water and platinum. And therefore the simulation results may be offered as reference to nano-spreading industries. The study is divided into two parts: choosing the temperature and the droplet size as operating conditions to investigate the wetting behavior respectively. The wetting area and the contact angle between the droplet and the platinum surface are investigated to discuss the wetting behaviors.