고온고압용기에서 충돌분무 특성에 관한 실험적 연구

An Experimental Studies on Impingement Spray Characteristic in High Temperature and Pressure Chamber

  • 안병규 (전북대학교 대학원) ;
  • 류호성 (전북대학교 대학원) ;
  • 오은탁 (전북대학교 대학원) ;
  • 송규근 (전북대학교 자동차신기술연구센타) ;
  • 정재연 (전북대학교 공업기술연구소)
  • 발행 : 2002.05.01

초록

The characteristics of spray has much effect on performance and emissions for automobile, diesel engine, gas turbine and combustion engines. So spray behavior after impinging the wall is very important for prediction the engine performance. This studies examined about impingement spray considering ambient density(18,24,30kg/ms), temperature(293,473K), impingement angle(0,30,45°). The images of impingement spray were obtained by the high speed video camera. After that we analyzed impingement spray characteristics to use this images. In this experiment, we found that 1) The spray width is reduced by increasing the ambient gas density and temperature,2) The growth of downstream is increased by increasing the impingement angle.

키워드

참고문헌

  1. H. Hiroyasu, 'Experimental and theoretical Studies on the Structure of Fuel Sprays in Diesel Engines,' Fifth International Conference on Liquid Atomization and Spray Systems, ICLASS B, pp.17-31, 1991
  2. K. K. Song, H. Hiroyasu, T. Yoshizaki, 'Three-Dimensional Spray Distributions in a Direct Injection Diesel Engine,' SAE 941693, 1994
  3. M. Suzuki, K. Nishida, H. Hiroyasu, 'Simultaneous Measurement of Fuel Vapor Concentration and Droplets Density in an Evaporating Diesel Spray with Laser Light Absorption and Scattering (1st Report, Development of Measuring Technique),' Transaction of JSME, Vol.59, No.558, B, pp.329-337, 1993
  4. J. Senda, Y. Fukami, Y. Tanabc, H. Fijimoto, 'Visualization of Evaporative Diesel Spray Impinging upon Wall Surface by Explicit FIuorescence Method,' SAE 920578, 1992
  5. 박권하, 김진환, 김재휘, '충돌면 경사각도에 변화에 따른 분무특성,' 한국자동차공학회논문집, 제6권 제6호,pp.63-71, 1998
  6. T. Ebara, K. Amagai, M. Arai, 'Movement and Stmcture of Diesel Spray Impinging on an In-dined Wall,' SAE 970046, 1997
  7. 차건종, 김덕출, '돌 분무 내부구조와 미시적 거동에 관한 연구,' 대한기계학회 논문집, 제23권 제4호, pp.470-478, 1999