Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Spray Characterization and Flow Visualization of the Supersonic Liquid Jet by a Projectile Impingement

발사체 충돌에 의한 초음속 액체 제트의 분사 특성 및 유동 가시화

  • 신정환 (한국항공대학교 대학원) ;
  • 이인철 (한국항공대학교 대학원) ;
  • 구자예 (한국항공대학교 항공우주 및 기계공학부) ;
  • 김희동 (국립안동대학교 기계공학과)
  • Received : 2011.05.18
  • Accepted : 2011.06.13
  • Published : 2011.06.30
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Abstract

Supersonic liquid jet discharged from a nozzle has been investigated by using a ballistic range which is composed of high-pressure tube, pump tube, launch tube and liquid storage nozzle. High-speed Schlieren optical method was used to visualize the supersonic liquid jet flow field containing shock wave system, and spray droplet diameter was measured by the laser diffraction method. Experiment was performed with various types of nozzle to investigate the major characteristics of the supersonic liquid jet operating at the range of total pressure of 0.8 from 2.14 GPa. The results obtained shows that shock wave considerably affects the detailed atomization process of the liquid jet and as the nozzle diameter decreases, the shock wave angle and the averaged SMD of spray droplet tends to decrease.

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References

  1. F. P. Bowden and J. H. Brunton, 1958, "Damage to solids by liquid impact at supersonic speeds," Nature, vol. 181, no. 4613, pp. 873-875. https://doi.org/10.1038/181873a0
  2. K. Pianthong, K. Takayama, B.E. Milton, M. Behnia, 2005, "Multiple pulsed hypersonic liquid disel fuel jets driven by projectile impact," Shock Waves, Digital Object Identifier (DOI) 10.1007/s00193-004-0237-2.
  3. Charters, A. C., 1995, "Development of the high velocity gas dynamics guns, Intl. Jour. Impact engineering," Vol. 17, pp. 181-203.
  4. J. E. Field and M. B. Lesser, 1977, "On the mechanics of high speed liquid jets," Proceedings Royal Society London, A series, Vol. 357, pp. 143-162. https://doi.org/10.1098/rspa.1977.0160
  5. 강현구, 2007, "Ballistic Range Simulator에 관한 실험적 연구," 국립안동대학교 석사학위논문.