基于高空10公里气流条件，采用流体体积法( VOF) 对于气流速度为0.9马赫和1.5马赫条件下的平板液膜流动过程进行了数值模拟，分析了液膜速度、液膜厚度和液膜温度等因素对于高速气流条件下液膜分布形态及破裂位置的影响规律。研究发现，随着液膜流速的增大，液膜与壁面之间的接触角减小；当液膜厚度一定时，随着液膜流速的增大，液膜破裂位置向后延迟；当液膜速度一定时，随着液膜厚度的增大，液膜破裂位置向后延迟；对于相同液膜流量而言，低流速厚液膜的抗破裂能力更强；随着液膜温度的提高，液膜粘性减小，液膜当地韦伯数增大，液膜破裂位置前移。

Based on the airflow conditions at an altitude of 10km, the volume of fluid method (VOF) is used to simulate the flow process of flat liquid film at Mach 0.9 and Mach 1.5. The effects of the velocity, thickness and temperature of the liquid film on the distribution and rupture position of liquid film under high-speed airflow are analyzed. It is found that the contact angle between the liquid film and the wall decreases with the increase of the liquid film velocity. When the thickness of liquid film is constant, the rupture position of liquid film is delayed downstream with the increase of liquid film velocity. In addition, when the liquid film velocity is constant, the rupture position of the liquid film is delayed downstream with the increase of the liquid film thickness. For the same liquid film flow rate, the rupture resistance of thick liquid film with low flow rate is greater. With the increase of liquid film temperature, the viscosity of liquid film decreases, the local Weber number of liquid film increases, and the rupture position of liquid film moves upstream.