超臨界雰囲気中の燃料液滴の気化特性

概要

論文の詳細を見る
Numerical simulations were conducted for a liquid fuel droplet gasifying in an otherwise quiescent gas with temperature and pressure exceeding the critical point of the fuel. The pressure dependencies of gasification lifetime were examined in terms of the ambient gas temperature and the initial droplet temperature as parameters. Three gasification regimes are identified on the plots of pressure and ambient gas temperature, which show the ambient condition in which the transition to continuous phase change takes place. For a fixed gas temperature, the gasification lifetime takes a minimum value at a pressure such that the droplet surface becomes critical immediately after its exposure to the hot gas. The transitional regime shrinks as the initial droplet temperature increases. The underlying physics is also explored.
一般社団法人日本機械学会の論文
1997-02-25