한국분무공학회지 (Journal of ILASS-Korea)

  • 제20권3호
  • /
  • Pages.187-194
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  • 2015
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  • 1226-2277(pISSN)
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  • 2288-9051(eISSN)
한국분무공학회 (Institute for Liquid Atomization and Spray Systems-Korea)
권호 표지
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가솔린 직분식 압축착화 엔진 저부하 영역 디젤/가솔린 분무의 쉴리렌, 쉐도우그래프, 미산란법적 가시화

Schlieren, Shadowgraph, Mie-scattering Visualization of Diesel and Gasoline Sprays under GDCI Engine Low Load Condition

  • 박성산 (한국과학기술원 기계공학과) ;
  • 김동훈 (한국과학기술원 항공우주공학과) ;
  • 배충식 (한국과학기술원 기계공학과)
  • 투고 : 2015.09.12
  • 심사 : 2015.09.25
  • 발행 : 2015.09.30
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초록

In this study, three visualization methods, Schlieren, Shadowgraph, and Mie-scattering, were applied to compare diesel and gasoline spray structures. Fuels were injected into a high pressure/high temperature constant volume chamber under the same ambient pressure and temperature condition of low load in gasoline direct injection compression ignition (GDCI) engine. Two injection pressures (40 and 80 MPa), two ambient pressures (4.2 and 1.7 MPa), and two ambient temperatures (908 and 677 K) were use. The images from the different methods were overlapped to show liquid and vapor phases more clearly. It was found that the gasoline fuel is more appropriate to form a lean mixture.

키워드

참고문헌

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