采用DPIV(Digital Particle Image Velocimetry)测量方法,开展了微重力条件下细水雾速度场特性的实验研究。研究结果表明:微重力条件下,细水雾竖直方向速度明显下降,整体雾场向四周扩散。根据牛顿第二定律,建立细水雾雾滴受力方程,模拟细水雾在常重力和微重力状态下的雾场情况,得出了与实验结果相同的结论。 A DPIV (Digital Particle Image Velocimetry) method was used to investigate the experimental results of the velocity field of water mist under microgravity. The results show that under the microgravity condition, the vertical velocity of the water mist drops obviously, and the whole fog field spreads to the periphery. According to Newton ’s second law, the equations of the droplet force of water mist are established to simulate the fog field of the water mist under the conditions of normal gravity and microgravity, and the same conclusion as the experimental results is obtained.