关键词: 燃料雾化;两相流;喷雾器;实验;研究

Abstract: Airblast coaxial atomizers are widely used in combustion chambers of liquid rocket engines (LRE), and the distributions of mass flux and gas/liquid mixture ratio in the down-Stream of the atomizeis are one of the important parameters which influence the performance of comb-ustion.A two-phase impact probe designed by the authers was employed to measure these parameters of certain type of airblast coaxal atomizers. The graphs from experimental result show the details of the distribution in the down-Stream of atomizers and the influences of the configuration parameters on distribution. The result provides important references for understandingthe structure of gas/liquid flow field and for desighing and improving such type of atomizer.

Key words: Fuel pulverization;Two-phase flow;Experimentation;resea-rch