Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Experimental Study on the Merged Angle of Mixed-Interaction Regions of Sprays from Two Pressure-Swirl Injectors

스월 분사기 분무 혼합충돌지역에서의 중첩각도에 관한 실험적 연구

  • 이영선 (과학기술연합대학원 발사체시스템공학) ;
  • 홍문근 (한국항공우주연구원) ;
  • 이수용 (한국항공우주연구원 미래로켓추진팀)
  • Received : 2010.10.15
  • Accepted : 2011.12.26
  • Published : 2011.12.31
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Abstract

The pressure-swirl atomizer is widely used for the injectors in liquid rocket engines thanks to its high performance atomization and broad stability margin range. Spray mixed-interaction is an important area of study especially in cases where the propellant is mixed by spray interaction after an oxidant and a fuel are discharged separately. This interaction of sprays results in a significant modification of the spray characteristics such as the spatial evolution of the sprays. Experiments are conducted by a photographic technique to quantify the merged angle of the interaction regions of sprays from two pressure-swirl injectors. The experimental results show that the merged angle is mainly determined by the momentum flux ratios between two swirled sprays.

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References

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