B-5 高粘性液体の中空円すい状液膜の間欠的分裂挙動について : 新種液体燃料のガスタービンへの適用性検討の基礎資料(液体燃料・燃焼器,一般講演)

概要

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Aiming to obtain the fundamental knowledge, which will be of use to apply new liquid fuels to gasturbine, hollow-cone spray of viscous liquid was investigated in high-pressure gas environment. The effects of liquid viscosity on breakup behavior and spray characteristics were examined. Employed test liquids were Diesel fuel #2, palm methyl ester (PME) and silicone oil #10. The behavior of injected liquid-film and spray was observed in detail by flash photography and high-speed camera. Mean diameter of spray droplets was measured by laser diffraction method. The hollow-cone spray of viscous liquid showed pulsating behavior in high-pressure gas environment. The mechanism of the spray pulsation was discussed. It was suggested that the spray pulsation was due to strongly unsteady breakup manner of viscous liquid film and distinct feature of the hollow-cone spray of viscous liquid.
2010-10-20