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连续均匀热气流中液核/袋状破碎特性实验

金仁瀚 刘勇 王锁芳

金仁瀚, 刘勇, 王锁芳. 连续均匀热气流中液核/袋状破碎特性实验[J]. 航空动力学报, 2017, 32(2): 280-288. doi: 10.13224/j.cnki.jasp.2017.02.004
引用本文: 金仁瀚, 刘勇, 王锁芳. 连续均匀热气流中液核/袋状破碎特性实验[J]. 航空动力学报, 2017, 32(2): 280-288. doi: 10.13224/j.cnki.jasp.2017.02.004
Experimental investigations on breakup characteristic of single droplet in the core/bag breakup regime inthe continuous uniform heating airflow[J]. Journal of Aerospace Power, 2017, 32(2): 280-288. doi: 10.13224/j.cnki.jasp.2017.02.004
Citation: Experimental investigations on breakup characteristic of single droplet in the core/bag breakup regime inthe continuous uniform heating airflow[J]. Journal of Aerospace Power, 2017, 32(2): 280-288. doi: 10.13224/j.cnki.jasp.2017.02.004

连续均匀热气流中液核/袋状破碎特性实验

doi: 10.13224/j.cnki.jasp.2017.02.004

Experimental investigations on breakup characteristic of single droplet in the core/bag breakup regime inthe continuous uniform heating airflow

  • 摘要: 为了获得热气流中单液滴液核/袋状破碎特性,采用高速摄像机对液滴变形、破碎过程进行了捕获.实验设计工况下所得结果表明:①液核/袋状破碎过程是液滴中液体流动与外界气动力共同作用下发生的,可以分为伞形破碎与勺形破碎;②液滴初始直径减小、气流温度增加,都可以降低液滴发生液核/袋状破碎所需最小气动力;③液滴破碎特征时间,随气动力增加呈负增长变化趋势,其值与变化梯度都随液滴初始直径增加而增大;④子液滴质量分数随气动力增加而增加,且随液滴初始直径增加而减小;⑤子液滴群质量分数的空间离散度都随气动力增加而增加.

     

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出版历程
  • 收稿日期:  2015-06-01
  • 刊出日期:  2017-02-28

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