有约束、轴对称抛撒条件下液体破碎、雾化的远场研究

An Investigation of Far-Atomization Field Under the Condition of Axisymmetrical Dissemination and Breakup of Liquid with Restraints

液体轴对称抛撒在研制云雾爆轰武器中有着重要的实际应用背景和学术研究价值.由于过去这方面大量的工作集中在野外场地中进行,对液体燃料抛撒初期及后期形成的云雾区特性缺少细致的实验研究.本文用垂直无膜激波管与液体抛撒发生器结合起来,用多根隔条形成不同宽度的间隙,利用激光粒子测量仪研究在有约束的条件下,液体破碎、雾化的远场特性,并得到了一些结论.

Laboratory researches of axisymmetrical dissemination of liquid have important academic and technique significance for the development of FAE. Up to now, most of FAE simulation tests have been made in out-door test field, so it is difficult to measure the distribution of liquid fuel droplets and study characteristics of atomization fields in detail. In this paper, for studying the characteristics of far-atomization fields, a laser scattering apparatus was used for measuring the distribution of liquid droplets under the condition of axisymmetrical dissemination of liquid with restraints in a diaphragm-less shock tube. The comparison of dissemination with restraints and without restraints was made. Some results have been obtained.