Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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A Comparative Study Between CFD and 0-D Simulation of Diesel Sprays with Several Fuel Injection Patterns Using Gas Jet Spray Model

가스제트 분무 모델을 이용한 다양한 분사 패턴의 디젤 분무에 대한 CFD 및 0-D 시뮬레이션 비교 연구

  • 이충훈 (서울과학기술대학교 기계.자동차공학과)
  • Received : 2012.04.02
  • Accepted : 2012.06.13
  • Published : 2012.06.30
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Abstract

The CFD simulation of diesel spray tip penetrations were compared with 0-D simulation for experimental data obtained with common rail injection system. The simulated four injection patterns include single, pilot and split injections. The CFD simulation of the spray penetration over these injection patterns was performed using the KIVA-3V code, which was implemented with both the standard KIVA spray and original gas jet sub-models. 0-D simulation of the spray tip penetration with time-varying injection profiles was formulated based on the effective injection velocity concept as an extension of steady gas jet theory. Both the CFD simulation of the spray tip penetration with the standard KIVA spray model and 0-D simulation matched better with the experimental data than the results of the gas jet model for the entire fuel injection patterns.

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References

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