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Deformation characteristics and trajectory tracking of a droplet impacting on a rotating heated surface

가열된 회전 표면 위에 충돌하는 액적의 변형 특성 및 거동 추적

  • Received : 2025.01.10
  • Accepted : 2025.03.07
  • Published : 2025.05.31

Abstract

Interaction between a droplet and a heated rotating surface occurs in a variety of industrial applications such as spray cooling systems. We investigate the spreading and movement characteristics of the impacting droplet on a heated rotating surface by adjusting the droplet impacting velocity, droplet diameter, substrate surface movement velocity, and the substrate surface temperature. It is shown that the spreading behavior of the droplet drastically changes as the droplet detaches from the surface when the surface temperature exceeds the Leidenfrost temperature. Meanwhile, above the Leidenfrost temperature, the droplet retains a spheroidal shape and represents a peculiar bulk movement above the rotating surface.

Keywords

Acknowledgement

2024년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원을 받아 수행된 연구임 (P0017006, 2024년 산업혁신인재지원사업)

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