気流中における2球まわりの蒸気濃度分布

概要

論文の詳細を見る
The laser Rayleigh scattering technique was applied for the remote and nonintrusive probing of the vapor concentration around two spheres of liquid fuel evaporating in a vertically upward free stream of air with uniform velocity and temperature profiles. The Rayleigh signal from a minute volume of vapor air mixture subjected to the monochromatic radiation of a focused argon laser was collected by the optical detection system. The results showed that the time-averaged vapor concentration profile directly upstream of the rear sphere resembled the one formed at the same position due to the evaporation of the front sphere alone for the inter sphere distance approximately four times longer than its diameter. It was also revealed that the vapor concentration profile downstream of the rear sphere was not affected by the existence of the front sphere. The vapor concentration increased with an increase in air temperature and the volatility of liquid fuel while it was independent of the air velocity.
一般社団法人日本機械学会の論文
1990-04-25