Journal of the Korean Society of Combustion (한국연소학회지)

The Korean Society of Combustion (한국연소학회)
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Numerical Investigation on the Thermal and Flow Characteristics of Combustion Heater for Commercial Vehicle

차량용 연소식 난방기의 열 및 유동특성에 대한 수치연구

  • 황창환 (한국과학기술원 기계항공 시스템 공학부) ;
  • 백승욱 (한국과학기술원 기계항공 시스템 공학부)
  • Received : 2010.05.27
  • Accepted : 2011.06.10
  • Published : 2011.06.30
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Abstract

The diesel pre-heater has being used in cabin heating and coolant heating of engine to reduce the engine warm up time for commercial vehicle. The pre-heaters are classified as diesel spray combustor and it forms diffusion flame. By using swirler, a recirculation flow of hot product gases is established near the fuel nozzle and it helps the maintaining of diffusion flame. The design difference of swirler can affect on reaction characteristics and temperature distribution inside pre-heater. The purpose of this study is the investigation of the effect of swirler configuration on combustion characteristics. To solve spray combustion problem, the Euler-Lagrange approach discrete model is used to track droplet trajectory and evaporation history. The PDF equilibrium model is used for chemical reaction model. These models are implemented into the FLUENT code.

Keywords

References

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