한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제22권2호
  • /
  • Pages.82-89
  • /
  • 2024
  • /
  • 1598-8430(pISSN)
  • /
  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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수직벽으로 연속 충돌하는 액적들의 비산/잔류 동적 거동 가시화 및 분석 연구

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

  • 노재현 ;
  • 이훈석 ;
  • 박태영 ;
  • 김승호
  • 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)
  • 투고 : 2024.06.26
  • 심사 : 2024.07.15
  • 발행 : 2024.07.31
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초록

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.

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과제정보

이 과제는 부산대학교 기본연구지원사업(2년)에의하여 연구되었음.

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