液滴与壁面碰撞模型研究

液滴在运动过程中与壁面发生碰撞后会发生破碎、反弹、附着等现象,这取决于液滴的尺寸、入射速度和角度,以及壁面的粗糙度、温度等因素.为了研究这个问题,在考虑以上因素的基础上,建立了液滴与壁面碰撞模型,并结合欧拉-拉格朗日两相流模型,分别对单液滴、水滴与壁面碰撞的情况进行了数值模拟.计算所得的结果与预期相同,并且与试验结果也吻合得较好,从而证明了所使用的液滴与壁面碰撞模型的正确性和合理性.

Investigating a droplet-wall collision model

After droplets collide with a wall,they either break up,rebound,or adhesion occurs.The result depends on droplet size,incident velocity and angle,wall roughness,temperature,and so on.To study this problem,after considering the above factors,a droplet-wall collision model was constructed.Combined with the Euler-Lagrange two-phase model,the mechanics of collisions between single droplets,multiple droplets and walls were simulated.The computational results were as expected and in good agreement with experiment...