Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Effect of Ambient Pressure on Internal Structure of a DI Gasoline Spray

직분식 가솔린 분무의 내부구조에 미치는 분위기 압력의 영향

  • 성기진 (부산대학교 대학원 기계공학과) ;
  • 최동석 (한국과학기술원 기계공학과) ;
  • 김덕줄 (부산대학교 기계공학부)
  • Published : 2002.11.01
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Abstract

The objective of this study is to examine a DI(Direct Injection) gasoline spray development process under different ambient pressures using PIV(Particle Image Velocimetry). fuel spray experiments were performed within a constant volume chamber. The spray structure, velocity maps, velocity and vorticity contours were obtained to investigate its spray characteristics. It was found that higher ambient pressure has a significant effect on radial growth of the spray. The position which has a maximum velocity moved from the spray edge to the spray center as ambient pressure was increased. Higher ambient pressure moved a maximum vorticity position upward of the spray.

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References

  1. SAE 1999-01-0498 Spray Formation of High Pressure Swirl Gasoline Injectiors Investigated by Two-Dimensional Mie and Lief Techniques W.Lpp;V.Wagner;H.Kramer;M.Wensing;A.Leipertz
  2. SAE 1999-01-3660 Investigation of Spray Formation of Gasoline Hollw-Cone Injectors Inside a Pressure Chamger and Glass Ring Engine by Multiple Optical Techniques W.Hentshel;A.Homburg;G.Ohmstede
  3. SAE 961925 Spray Dynamics of High Pressure Fuel Injectors for DI Gasoline Engines F.Q.Zhao;J.-H.Yoo;M.C.Lai
  4. 대한기계학회 논문집 B권 v.23 no.4 Exciplex 형광법에 의한 가솔린 직접 분무의 기상과 액상분포 및 농도 측정 최동석;박형호;김덕줄
  5. Experimental in Fluids no.Supple PIV Measurement of Internal Structure of Diesel Fuel Spray Z.Cao;K.Nishino;S.Mizuno;K.Totii
  6. SAE 960770 Analysis of Diesel Spray Structure Using Magnified Photograph and PIV N.Ishikawa;K.Nimura
  7. 한국액체미립화학회 학술강연회 논문집 Flow Characteristics inside a Non-evaporating and an Evaporating Diesel Spray H.Fujimoto;J.Senda
  8. SAE 1999-01-3535 SIDI Fuel Spray Structure Investigation Using Flow Visualisation and Digital Particle Image R.Wicker;H.Loya;P.Hutchison
  9. SAE 2000-01-1045 A Study on Fuel Spray Pattern Control of Fuel Injector of Gasoline Direct Injection Engines A.Miyajima;Y.Okamoto;Y.Kadomukai;S.Togashi;M.Kashiwaya
  10. SAE 970352 Effect of Ambient Gas Properties for Characteristics of Non-reacting Diesel Fuel Spray T.Dan;S.Takagishi;J.Senda;H.Fujimoto