한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제11권3호
  • /
  • Pages.12-16
  • /
  • 2013
  • /
  • 1598-8430(pISSN)
  • /
  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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SiO2 나노입자 현탁액의 충돌 및 퍼짐에 관한 실험적 연구

Experimental study on impact and spreading of SiO2 nanoparticle colloidal suspension droplets

  • 허형규 (포항공과대학교 생체유체연구단) ;
  • 이상준 (포항공과대학교 생체유체연구단)
  • 투고 : 2013.11.06
  • 심사 : 2013.12.10
  • 발행 : 2013.12.30
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초록

The impact and spreading behaviors of silicon dioxide nanoparticle colloidal suspension droplets were quantitatively visualized using a high-speed imaging system. Millimeter-scale droplets were generated by a syringe pump and a needle. Droplets of different velocity were impacted on a non-porous solid surface. Images were consecutively recorded using a CMOS high-speed camera at 5000 fps (frames per second) for millimeter-scale droplets. Temporal variations of droplet diameter, velocity and maximum spreading diameters were evaluated from the sequential images captured for each experimental condition. Effects of Reynolds number, Weber number, and particle concentration were investigated experimentally.

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참고문헌

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