한국분무공학회지 (Journal of ILASS-Korea)
- 제9권4호
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- Pages.83-89
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- 2004
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- 1226-2277(pISSN)
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- 2288-9051(eISSN)
고온 고압 유동장에서 햅탄 액적의 기화 특성
Characteristics of Heptane Droplet Vaporization in High-Pressure and Temperature Flow Field
초록
Vaporization characteristics of a liquid heptane droplet in high-pressure and temperature flow field are numerically studied. Variable thermodynamic and transport properties and high-pressure effects are taken into account in order to consider real gas effects. Droplet Vaporization in convective environments was investigated on the basis of droplet vaporization in quiescent and convective environment. In quiescent environments, droplet lifetime is directly proportional to pressure at the subcritical temperature range but it is inversely proportional to pressure at the supercritical temperature range. In convective environment, droplet deformation becomes stronger by increasing Reynolds number due to increase of velocity while droplet deformation is relatively weak at a higher pressure for the same Reynolds number cases.
키워드