한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제16권1호
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  • Pages.48-53
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  • 2018
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  • 1598-8430(pISSN)
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  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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디지털 현미경 홀로그래피 기법을 이용한 마이크로 액체 제트 유동에 관한 실험적 연구

Experimental Study on the Characteristics of Micro Jet Flow Using Digital Microscopic Holography

  • Lee, Haneol (School of Mechanical Engineering, Chungnam National University) ;
  • Lee, Jaiho (Korea Hydro & Nuclear Power Co.) ;
  • Shin, Weon Gyu (School of Mechanical Engineering, Chungnam National University)
  • 투고 : 2018.03.20
  • 심사 : 2018.04.23
  • 발행 : 2018.04.30
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초록

In this study, the effect of injection pressure on the column diameter and droplet velocity of liquid jet with the weakly turbulent Rayleigh-like breakup mode is experimentally studied using digital microscopic holography (DMH). The injection nozzle has the diameter of $50{\mu}m$ and injection pressure is varied from 0.1 to 0.4 MPa. When the micro liquid jet is injected into still air, the double-pulsed holograms was recorded on a CCD sensor and numerically reconstructed in order to obtain well focused images. In this study, the liquid column diameter from $50{\mu}m$ orifice nozzle is shown to be changed slightly but the droplet velocity is increased proportionally as the injection pressure is increased.

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참고문헌

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