International Journal of Automotive Technology

  • 제6권1호
  • /
  • Pages.9-14
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  • 2005
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  • 1229-9138(pISSN)
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  • 1976-3832(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

ATOMIZATION PROCESS OF DIESEL FUEL SPRAY IN THE INITIAL STAGE OF INJECTION

  • KO K. N. (Research Institute of Advanced Technology, Cheju National University) ;
  • LEE C. S. (Department of Mechanical Engineering, Cheju National University) ;
  • HUH J. C. (Department of Mechanical Engineering, Cheju National University)
  • 발행 : 2005.02.01
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초록

An experimental investigation has been carried out to reveal the atomization process of the diesel fuel spray. The spray injected through a single hole nozzle was taken by a camera on the opposite side of a stroboscope for macroscopic observation or a nanolite for microscopic observation. The effect of nozzle aspect ratio was analyzed with disintegration phenomena of the diesel spray. Based on the enlarged spray photograph, atomization process was observed in detail and further the spray cone angle was measured under various ambient pressures. The result shows that atomization of diesel spray in early stage of injection is mainly progressed in the vicinity of spray periphery region except the region close to the nozzle exit and spray head region. The spray cone angle is nearly constant under the pressurized condition, while it decreases with elapsing time under the atmospheric condition.

키워드

참고문헌

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