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Spray Angle and Break-up Characteristics of Supersonic Liquid Jets by an Impinging Methods with High Speed Projectile

초고속 발사체의 액체 저장부 충돌에 의한 초음속 액체 제트의 분무 속도 및 분열 특성

  • 이인철 (한국항공대학교 대학원) ;
  • 신정환 (한국항공대학교 대학원) ;
  • 김희동 (국립안동대학교 기계공학과) ;
  • 구자예 (한국항공대학교 항공우주및기계공학부)
  • Received : 2011.03.23
  • Accepted : 2011.03.30
  • Published : 2011.03.31

Abstract

Pulsed supersonic liquid jets injected into an ambient air are empirically studied by using a high pressure ballistic range system. Ballistic range systems which are configured with high-pressure tube, pump tube, launch tube and liquid storage nozzle. Experimental studies are conducted to use with various impact nozzle geometry. Supersonic liquid jets are generated by an impact of high speed of the projectile. High speed liquid jets are injected with M = 3.2 which pressure is 1.19 GPa. Multiple jets which accompany with shock wave and pressure wave in front of the jet were observed. The shock-wave affects significantly atomization process for each spray droplets. As decreasing orifice diameter, the averaged SMD of spray jets had the decreasing tendency.

Acknowledgement

Supported by : 한국연구재단

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