한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제14권2호
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  • Pages.31-39
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  • 2016
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  • 1598-8430(pISSN)
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  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
권호 표지
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Tomographic PIV measurement of internal complex flow of an evaporating droplet with non-uniformly receding contact lines

  • Kim, Hyoungsoo (Department of Mechanical and Aerospace Engineering, Princeton University) ;
  • Belmiloud, Naser (SCREEN SPE Germany GmbH) ;
  • Mertens, Paul W. (IMEC)
  • 투고 : 2016.07.27
  • 심사 : 2016.08.19
  • 발행 : 2016.08.31
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초록

We investigate an internal flow pattern of an evaporating droplet where the contact line non-uniformly recedes. By using tomographic Particle Image Velocimetry, we observe a three-dimensional azimuthal vortex pair that is maintained until the droplet is completely dried. The non-uniformly receding contact line motion breaks the flow symmetry. Finally, a simplified scaling model presents that the mechanical stress along the contact line is proportional to the vorticity magnitude, which is validated by the experimental results.

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참고문헌

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