Over the past decade, extensive efforts have been made in the study of droplet impact, especially on stationary surfaces, owing to its direct applications in thermal cooling, self-cleaning, and power generation. However, many practical applications, such as ultrasonic cleaning, aerosolized drug delivery, and vibration-assisted welding, involve the direct interaction of droplets with vibrating surfaces, on which droplets undergo spreading and retraction. Distinct from stationary surfaces where the retraction behaviors, such as the retraction velocity and rate, are mainly governed by the surface wettability and droplet inertia, the retraction behaviors on vibrating surfaces become complicated due to the vibration velocity, which dictates the outcomes of droplet impact, such as the pinning, bouncing, gyrating, and jetting. Here, we revealed the synergistic effect of droplet inertia and vibration velocity on droplet retraction. We found that the droplet retraction behaviors on both stationary and vibrating surfaces could be characterized by a universal scaling law, allowing us to analyze and predict the maximum droplet retraction velocities. Moreover, we found that the maximum retraction rate increased with the maximum spreading radius at low Weber numbers. We demonstrated that the droplet retraction dynamics at both low Weber numbers and high Weber numbers could be unified into one integrated model, which indicates the decisive role of the maximum droplet spreading in droplet retraction dynamics.
Skip Nav Destination
Universal scaling of droplet retraction dynamics on vibrating surfaces
Article navigation
22 May 2023
Research Article|
May 22 2023
Universal scaling of droplet retraction dynamics on vibrating surfaces
Special Collection:
Superhydrophobic Surfaces
Mingkai Song
;
Mingkai Song
(Investigation, Methodology, Writing – review & editing)
1
School of Mechanical and Aerospace Engineering, Jilin University
, Changchun 130025, People's Republic of China
Search for other works by this author on:
Xiaonan Liu
;
Xiaonan Liu
(Writing – review & editing)
2
Department of Mechanical Engineering, City University of Hong Kong
, Hong Kong 999077, People's Republic of China
Search for other works by this author on:
Ting Wang
;
Ting Wang
(Writing – review & editing)
2
Department of Mechanical Engineering, City University of Hong Kong
, Hong Kong 999077, People's Republic of China
Search for other works by this author on:
Wanghuai Xu
;
Wanghuai Xu
(Writing – review & editing)
3
Department of Mechanical Engineering, The Hong Kong Polytechnic University
, Hong Kong 999077, People's Republic of China
Search for other works by this author on:
Shengteng Zhao
;
Shengteng Zhao
(Investigation, Methodology)
1
School of Mechanical and Aerospace Engineering, Jilin University
, Changchun 130025, People's Republic of China
Search for other works by this author on:
Shunbo Wang
;
Shunbo Wang
(Investigation, Methodology)
1
School of Mechanical and Aerospace Engineering, Jilin University
, Changchun 130025, People's Republic of China
Search for other works by this author on:
Zuankai Wang
;
Zuankai Wang
a)
(Resources, Writing – review & editing)
3
Department of Mechanical Engineering, The Hong Kong Polytechnic University
, Hong Kong 999077, People's Republic of China
Search for other works by this author on:
Hongwei Zhao
Hongwei Zhao
a)
(Resources, Writing – review & editing)
1
School of Mechanical and Aerospace Engineering, Jilin University
, Changchun 130025, People's Republic of China
4
Key Laboratory of CNC Equipment Reliability, Ministry of Education
, Changchun 130025, People's Republic of China
Search for other works by this author on:
Note: This paper is part of the APL Special Collection on Superhydrophobic Surfaces.
Appl. Phys. Lett. 122, 214102 (2023)
Article history
Received:
March 31 2023
Accepted:
April 17 2023
Citation
Mingkai Song, Xiaonan Liu, Ting Wang, Wanghuai Xu, Shengteng Zhao, Shunbo Wang, Zuankai Wang, Hongwei Zhao; Universal scaling of droplet retraction dynamics on vibrating surfaces. Appl. Phys. Lett. 22 May 2023; 122 (21): 214102. https://doi.org/10.1063/5.0152599
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00