Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Effect of Flow Structure Inside Nozzle on the Liquid Jet Breakup of Elliptical Nozzle

타원형 노즐의 내부유동 구조가 액주분열에 미치는 영향

  • 구건우 (경북대학교 기계연구소) ;
  • 홍정구 (경북대학교 기계공학부)
  • Received : 2013.01.24
  • Accepted : 2013.03.12
  • Published : 2013.03.30
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Abstract

An experimental study was performed to investigate the liquid jet breakup of a circular nozzle and elliptical nozzles. Furthermore Numerical simulation was attempted to investigate the internal flow structure in the circular and elliptical nozzles. This study showed that the disintegration characteristics of the liquid jet of elliptical nozzles were much different from those of the circular nozzle. The liquid jet issued from the elliptical nozzles became more unstable at the same injection pressure. Surface breakup was observed at the jet issued from the elliptical nozzles with the increase of injection pressure. The disintegration of the liquid jet of elliptical nozzles was related with the internal flow structure which is revealed from the numerical simulation.

Keywords

References

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