衝撃波に誘起された高速気流による液滴列の分裂と相互干渉

概要

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Breakup and interaction of two droplets exposed in a shock wave induced air flow of 195 m/s in velocity were observed using holographic interferometry. Experiments were conducted in a 60 mm × 150 mm shock tube for shock Mach number 1.4 in air. The 1.4 mm diameter water droplets were examined whose Weber number and Reynolds number were 730 and 26 000, respectively. The interval between the two droplets was 8.8 mm. It is found that displacement of a droplet in the first droplet was larger than that in the second one, however, this trend was reversed at the later stage. At the final stage, the mists of successive droplets were coupled into almost one group of mist. As a conclusion, it is revealed that there is a strong interference between the two droplets.
一般社団法人日本機械学会の論文
1989-06-25