고온벽면에 충돌하는 디젤부문의 특성 연구

Characteristics of a Diesel Spray Impinging on the Hot Plate

  • 문석범 (한국항공대학교 대학원) ;
  • 구자예 (한국항공대학교 항공기계공학과)
  • 발행 : 1999.11.01

초록

An experimenta investigation of unsteady impinging DI diesel spray on the unheated plate and heated plate has been conducted in a pressurized chamber using high speed shadowgraphy. The ambient agas pressure was varied using nitrogen with chamber pressure of 1.1MPa, 2.1MPa and 2.6MPa. As the increase of ambient gas pressure of ambient gas pressure, the height of spray is increased if entrainment and circulation . At higher temperature of impinging plate, the radial penetration of the impinging spary is incresed , but the height of impinging spray is decreased.

키워드

참고문헌

  1. SAE Paper 890265 Spray Characteristics and Combustion Improvement of D.I. Diesel Engine with High Pressure Fuel Injection Kato, T.;Tsujmura, K.;Shintani, M.;Minami, T.;Yamaguchi, I.
  2. 연소연구 v.107 소형 Diesel 기관의 신연소 Concept 松井幸雄
  3. 일본기계학회논문집, 논문 No.94-0898 Observation of the Atomization Process of an intermittent Spray from a Diesel Nozzle in Its Very Early Stage H. Takahashi;H. Yanagisawa;Sl Shiga;T. Karasawa;H. Nakamura
  4. SAE Paper 790494 On the Dependence of Spray Angle and other Spray parameters on Nozzle Design and Operating Conditions R. D. Reitz;F. B. Bracco
  5. SAE Paper 881316 Modeling Engine Spray/Wall Impingement Naber, J.D.;Reitz, R.D.
  6. Experimental Methods for Engineers(6th Ed.) Holman, J.P.
  7. SAE 940678 Flow and Heat Transfer Characteristics of Impinging Transient Diesel Spray C. Arcoumanis;J-C. Chang
  8. Ph.D. Thesis, University of London Diesel Spray Characteristics and Spray/Wall Heat Transfer J-C. Chang