Abstract
An anti-frosting strategy using ultrasonic wave and hydrophobic surface to drive droplets is proposed. The transport behavior of droplets on the aluminum plate surface under ultrasonic excitation is studied experimentally. The effects of ultrasonic power, droplet volume and surface hydrophobicity on the diameter spreading rate, average velocity of droplet are analyzed. The results show that the droplet undergoes four stages of spreading deformation-motion-atomization-evaporation under the action of ultrasonic wave. The droplet diameter spreading rate increases with the increase of ultrasonic power, but the droplet volume has no significant effect on it. The average velocity is positively correlated with ultrasonic power and droplet volume. Compared with the bare aluminum surface, the diameter spreading rate of droplet on the hydrophobic surface increased to about 1.15 times, and the average velocity increased to about 6 times.
| Translated title of the contribution | Experimental study on the droplet motion on the hydrophobic surface under ultrasonic excitation |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 133-139 |
| Number of pages | 7 |
| Journal | Huagong Xuebao/Journal of Chemical Industry and Engineering (China) |
| Volume | 76 |
| DOIs | |
| State | Published - 25 Jun 2025 |