实验室电解水产生气泡群的尺度分布

Bubble size distribution by electrolyzing water in laboratory

分别通过对气泡照片进行图像处理和利用声波的散射进行反演两种方法,研究了实验室电解水产生气泡群的尺度分布.结果表明:在实验条件下,电解水产生的气泡直径在10～250μm之间;直径100μm以下的小气泡占绝大多数,超过80%,平均直径在75.4μm左右;电解水产生的气泡群呈现泊松分布;声学反演出的气泡分布趋势与光学测量结果相近.

By using the photo image processing and the acoustical scattering inversion, size distribu- tion of the bubbles by electrolyzing water is researched. The results show that, in the experimental conditions, electrolytic bubble diameters are from 10 to 250 μm. More than 80% of that are less than 100 μm; the average diameter is about 75.4 μm. Generation of the electrolytic bubbles follows a Poisson distribution. The acoustical inversion and the optical measurement results agree well.