液滴冲击振动亲水表面动力学试验研究

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (21) : 277-283.

论文

液滴冲击振动亲水表面动力学试验研究

冯辰1,2，周航2，张萌2，陈新文2，黄金佐2，李兆华2

作者信息 +

Test study on dynamic behavior of droplet impact vibration

FENG Chen1,2, ZHOU Hang2, ZHANG Meng2, CHEN Xinwen2, HUANG Jinzuo2, LI Zhaohua2

Author information +

文章历史 +

摘要

液滴撞击现象广泛存在于自然界以及工程应用中。但韦伯数（）及激振力对液滴动力学的联合效应仍然未被充分探讨。为了充分探讨以及激振力对液滴动力学的联合效应，本文利用高速相机研究了不同振动条件下单液滴撞击固体表面的动力学，探究了在及激振力的影响下单液滴撞击的动力学行为。研究结果表明，大激振力工况下，液滴获得了克服粘附力的额外惯性力，液滴扩散得到了增强，但是随着激振力的降低，增强作用也下降。在为33.25，激振力为62N时比激振力为0.23N时，液滴扩散增强了0.07。能够增加液滴撞击相对速度，增强液滴相对撞击动量，从而促进液滴扩散。在为33.25时的液滴的振动增强因子比为13.87时平均增加了0.95。

Abstract

The droplet impact phenomenon widely exists in nature and engineering applications. However, the combined effects of Weber number（）and vibration force on droplet dynamics have not been fully explored. In order to fully explore the combined effects of and vibration force on droplet dynamics, This paper uses a high-speed camera to study the dynamics of a single droplet impacting a solid surface under different vibration conditions, and explores the dynamic behavior of a single droplet impact under the influence of and vibration force. The research results show that under the condition of large excitation force, the droplets obtain additional inertial force to overcome the adhesion force, and the droplet diffusion is enhanced. However, as the excitation force decreases, the enhancement effect also decreases. The droplet spreading is enhanced by 0.07 at of 33.25 and a vibrational force of 62N than at a vibrational force of 0.23N. can increase the relative velocity of droplet impact and enhance the relative impact momentum of droplets, thus promoting droplet spreading. The vibration enhancement factor of the droplets at of 33.25 increased on average by 0.95 compared to that at 13.87.

导出引用

冯辰1, 2, 周航2, 张萌2, 陈新文2, 黄金佐2, 李兆华2. 液滴冲击振动亲水表面动力学试验研究[J]. 振动与冲击, 2024, 43(21): 277-283

FENG Chen1, 2, ZHOU Hang2, ZHANG Meng2, CHEN Xinwen2, HUANG Jinzuo2, LI Zhaohua2. Test study on dynamic behavior of droplet impact vibration[J]. Journal of Vibration and Shock, 2024, 43(21): 277-283

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