円柱後流における燃料噴霧の群燃焼挙動

概要

論文の詳細を見る
A circular rod was inserted in a spray flame stabilized by an annular hydrogen diffusion pilot flame to investigate the detailed structure of spray flames under the influence of the wake flow behind the rod. The light emissions in OH- and CH-bands, and the laser light scattered by droplets were monitored simultaneously and analyzed spectrally in the flame with and without a rod. The droplet velocity was also monitored using a laser Doppler velocimenter (LDV). It was experimentally confirmed that the inserted rod promoted the reduction of the length scale of droplet clusters and the flame propagation into the clusters associated with solid-body light emission. This result suggests that the combustion behavior of droplet clusters is influenced by the turbulent mixing and slip velocity between gas and droplets due to the wake flow behind the rod.
社団法人日本機械学会の論文
1995-01-25