高温高速気流中に噴射した液体燃料の分散特性 : 第2報, 気泡混入による噴射燃料の分散, 燃焼制御

概要

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A bubbling liquid fuel (kerosene) jet was ejected normal to a high-temperature and high-speed airstream to control the spray shape and terperature of the airstream under an airstream velocity of 80m/s and a constant ejecting pressure. Spray shapes were obtained by taking scattered-light photographs with a long exposure time, the flame photographs were taken in the downstream region of the flame holder and the temperature of the airstream was measured at the exit of the test section of the wind tunnel. The height of the outer line of the fuel spray and the temperature profile of the airstream hardly changed and the temperature of airstream decreased when the ratio of the mass flow ratio of the ejected liquid Q_k to the standard mass flow rate Q_k0 decreases under the condition of Q_k/Q_k0 from 100% (without gas) to 56%. However, with decreasing in Q_k under the condition of Q_k/Q_k0 less than about 50%, the temperature profile of the airstream changed.
一般社団法人日本機械学会の論文
1997-11-25