AM06-23-002 噴霧火炎の火炎片挙動に及ぼす伸張率,噴霧粒径および当量比の影響(燃焼・反応流(1),一般講演)

概要

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Effects of strain rate, initial droplet size and equivalence ratio on the flamelet behavior of spray flames in a laminar counterflow are investigated by a two-dimensional DNS in terms of mixture fraction and scalar dissipation rate. The motion of spray droplets is calculated by the Lagrangian method without parcel model. The results shows that large difference in the trends of temperature and mass fractions of chemical species in mixture fraction space between the spray flame and gaseous diffusion flame is observed. Especially the temperature in the spray flame is much higher than that in the gaseous diffusion flame. This is considered due to much lower scalar dissipation rate and co-existence of premixed and diffusion combustion in the spray flame.
日本流体力学会の論文
2006-09-05