Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
권호 표지
DOI QR코드

DOI QR Code

Visualization and Analysis of the Dynamic Behavior of Splashes and Residuals of Droplets Continuously Colliding with a Vertical Wall

수직벽으로 연속 충돌하는 액적들의 비산/잔류 동적 거동 가시화 및 분석 연구

  • Jaehyeon Noh (School of Mechanical Engineering, Pusan National University) ;
  • Hoonseok Lee (School of Mechanical Engineering, Pusan National University) ;
  • Taeyeong Park (School of Mechanical Engineering, Pusan National University) ;
  • Seungho Kim (School of Mechanical Engineering, Pusan National University)
  • Received : 2024.06.26
  • Accepted : 2024.07.15
  • Published : 2024.07.31
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, experiments were conducted to visualize and analyze the dynamic characteristics of splash and residual liquid film formation during and after the injection of water droplets onto vertically situated solid substrates with varying surface wettability, elasticity, and microtexture. As wettability decreased (higher contact angle), more splash droplets formed, and the residual liquid film decreased. Low contact angles resulted in thin residual films and less splash. Surface elasticity absorbed the impact forces of droplets, thereby decreasing splash phenomena and significantly reducing the formation of residual liquid films due to surface vibration. Surfaces with microtextures demonstrated control over droplet splash direction, guiding the liquid along desired pathways. High-speed imaging provided detailed insights, showing that surface properties critically influence splash dynamics and residual liquid film formation.

Keywords

Acknowledgement

이 과제는 부산대학교 기본연구지원사업(2년)에의하여 연구되었음.

References

  1. Thurairajah, K., et al. 2022, "Splash-free Urinals Inspired by Nautilus Shells and Dogs," Bulletin of the American Physical Society. 
  2. Gotlinsky, B., Pate, K. T., and Grant, D. C., 2010, "Filtering, Recirculating, Reuse, and Recycling of Chemicals," Handbook of Cleaning in Semiconductor Manufacturing: Fundamental and Applications, pp.193~236. 
  3. Riboux, G., and Gordillo, J. M., 2014, "Experiments of Drops Impacting a Smooth Solid Surface: A Model of the Critical Impact Speed for Drop Splashing," Physical Review Letters, Vol. 113, no. 2, 024507. 
  4. Bussmann, M., Chandra, S., and Mostaghimi, J., 2000, "Modeling the Splash of a Droplet Impacting a Solid Surface," Physics of Fluids, Vol. 12, no. 12, pp.3121~3132.  https://doi.org/10.1063/1.1321258
  5. Rajendran, S., Jog, M. A., and Manglik, R. M., 2023, "Predicting the Splash of a Drop Impacting a Thin Liquid Film," Langmuir, Vol. 39, no. 41, pp.14764~14773.  https://doi.org/10.1021/acs.langmuir.3c02185
  6. Yarin, A. L., 2006, "Drop Impact Dynamics: Splashing, Spreading, Receding, Bouncing," Annual Review of Fluid Mechanics, Vol. 38, pp.159~192.  https://doi.org/10.1146/annurev.fluid.38.050304.092144
  7. Josserand, C., and Thoroddsen, S. T., 2016, "Drop Impact on a Solid Surface," Annual Review of Fluid Mechanics, Vol. 48, pp.365~391.  https://doi.org/10.1146/annurev-fluid-122414-034401
  8. Kim, J.-H., Rothstein, J. P., and Shang, J. K., 2018, "Dynamics of a Flexible Superhydrophobic Surface During a Drop Impact," Physics of Fluids, Vol. 30, no. 7. 
  9. Lee, S., and Lee, S., 2023, "Splashing of Droplet Under the Vibration Effect of Flexible Membrane," Journal of Micromechanics and Microengineering, Vol. 33, no. 10, 105010. 
  10. Kim, S., Wu, Z., Esmaili, E., Dombroskie, J. J., and Jung, S., 2020, "How a Raindrop Gets Shattered on Biological Surfaces," Proceedings of the National Academy of Sciences, Vol. 117, no. 25, pp.13901~13907.  https://doi.org/10.1073/pnas.2002924117
  11. Almohammadi, H., and Amirfazli, A., 2019, "Droplet Impact: Viscosity and Wettability Effects on Splashing," Journal of Colloid and Interface Science, Vol. 553, pp.22~30.  https://doi.org/10.1016/j.jcis.2019.05.101
  12. Zhang, H., et al., 2021, "Effect of Wettability on Droplet Impact: Spreading and Splashing," Experimental Thermal and Fluid Science, Vol. 124, 110369. 
  13. Banitabaei, S. A., and Amirfazli, A., 2017, "Droplet Impact onto a Solid Sphere: Effect of Wettability and Impact Velocity," Physics of Fluids, Vol. 29, no. 6. 
  14. Rioboo, R., Tropea, C., and Marengo, M., 2001, "Outcomes from a Drop Impact on Solid Surfaces," Atomization and Sprays, Vol. 11, no. 2, pp.1~16.  https://doi.org/10.1615/AtomizSpr.v11.i1.10
  15. Liu, Y., Tan, P., and Xu, L., 2015, "Kelvin- Helmholtz Instability in an Ultrathin Air Film Causes Drop Splashing on Smooth Surfaces," Proceedings of the National Academy of Sciences, Vol. 112, no. 11, pp.3280~3284.  https://doi.org/10.1073/pnas.1417718112
  16. Song, M., et al., 2017, "Controlling Liquid Splash on Superhydrophobic Surfaces by a Vesicle Surfactant," Science Advances, Vol. 3, no. 3, e1602188. 
  17. Bird, J. C., Tsai, S. S. H., and Stone, H. A., 2009, "Inclined to Splash: Triggering and Inhibiting a Splash with Tangential Velocity," New Journal of Physics, Vol. 11, no. 6, 063017. 
  18. Liu, M., Sun, J., Sun, Y., Bock, C., and Chen, Q., 2009, "Thickness-dependent Mechanical Properties of Polydimethylsiloxane Membranes," Journal of Micromechanics and Microengineering, Vol. 19, no. 3, 035028. 
  19. Rioboo, R., et al., 2003, "Experimental Investigation of Splash and Crown Formation During Single Drop Impact on Wetted Surfaces," Experiments in Fluids, Vol. 35, pp.648~652.  https://doi.org/10.1007/s00348-003-0719-5
  20. Schindelin, J., et al., 2012, "Fiji: An Open-Source Platform for Biological-Image Analysis," Nature Methods, Vol. 9, no. 7, pp.676~682.  https://doi.org/10.1038/nmeth.2019
  21. Ershov, D., et al., 2021, "Bringing TrackMate into the Era of Machine-Learning and Deep-Learning," Cold Spring Harbor Laboratory, 10.1101/2021.09.03.458852.