Droplet evaporation in a turbulent environment at elevated pressure and temperature conditions
COMBUSTION SCIENCE AND TECHNOLOGY, cilt.180, sa.10-11, ss.1987-2014, 2008 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 180 Sayı: 10-11
- Basım Tarihi: 2008
- Doi Numarası: 10.1080/00102200802269707
- Dergi Adı: COMBUSTION SCIENCE AND TECHNOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1987-2014
- Orta Doğu Teknik Üniversitesi Adresli: Hayır
Özet
A three-dimensional numerical model is developed to assess the effect of freestream turbulence on the vaporization of n-heptane droplet, which is exposed to a freestream of nitrogen at elevated pressure and subcritical temperature conditions. The freestream pressure, temperature and turbulence intensity are varied in the range of 0.5-10MPa, 324-502K, and 0%-60%, respectively. Variable thermophysical properties, the unsteadiness behavior of the gas and liquid phases, as well as heat transfer by radiation are all considered. In addition, non-ideality behavior of the gas phase, solubility of the gas into the droplet and pressure dependence of the gas-phase thermophysical properties are also accounted for. The turbulence terms in the conservation equations of the gas-phase are modeled by using the shear-stress transport (SST) model. The results show that, for the temperature range (T-infinity