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마이크로, 마이크로/나노 구조 표면 및 윤활제 주입 표면에서의 액적 충돌 현상에 대한 가시화 연구

원문정보

Visualization Study of Droplet Impact Phenomena on Micro-, Micro/Nano-Textured Surfaces and Lubricant Infused Surfaces

사프칼 나라얀 판두랑, 서경덕, 유동인

피인용수 : 0(자료제공 : 네이버학술정보)

초록

영어

In this study, visualization of droplet impact on hydrophobic micro-, micro/nano-textured surfaces and lubricant infused surfaces was performed. Experimental specimens were fabricated using MEMS (micro- electromechanical systems) techniques and droplet impact with pure water was visualized at various Weber number range (2 < We < 200) using a high speed camera at 8000 frames per second. Through this study it was confirmed that, various droplet impact behaviors were appeared as the Weber number was increased and the Weber number at which droplet impact behavior changes was affected by surface characteristics. Particularly, on the lubricant infused surface (LIS) after droplet impact retraction velocity is reduced by the lubricant viscosity effect during contraction process of droplet to improve the droplet deposition behavior on the surface. It was confirmed that droplet break up phenomena caused interfacial instability was slightly delayed on LIS due to the viscous dissipation effect during droplet impact process.

목차

ABSTRACT
1. Introduction
2. Samples Preparation
3. Experimental Set-up
4. Results and Discussions
4.1 Outcomes of droplet impact
4.2 Effects of Weber number and Surface Characteristics
5. Conclusions
References

저자정보

  • 사프칼 나라얀 판두랑 Narayan Pandurang Sapkal. Pukyong National University, Department of Mechnical Design Engineering
  • 서경덕 Kyong-Duck Seo. Wonkwang University, Department of Mechanical Engineering
  • 유동인 Dong-In Yu. Pukyong National University, Department of Mechnical Design Engineering

참고문헌

자료제공 : 네이버학술정보

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