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Visualization of rupturing of rotating films

회전 원판 위 액막 유동 찢김 가시화

  • Received : 2023.11.08
  • Accepted : 2023.12.20
  • Published : 2024.03.31

Abstract

We visualized the rupturing of liquid films flowing over a disk rotating with large angular velocity. A setup of high speed imaging for liquid flows on dark and reflective surfaces are suggested. From the result, rivulet structures are revealed to be strongly governed by three-dimensional surface structures developed in the film flow. Additionally, unique flow structures including the rivulet sliding and internal meandering are investigated. Generation mechanism of such structures are discussed in terms of the dynamic contact angle theory.

Keywords

References

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