Effect of Disk Edge Profile on Scattering Characteristics of Liquid Droplets Splashed from Spinning Disk

DOI: 10.4236/ojfd.2013.32A004   PDF   HTML     2,791 Downloads   4,259 Views  


Effects of disk edge profile on scattering characteristics of liquid droplets splashed from a rotating disk edge are experimentally investigated. In the present research, aluminum disks are utilized and purified water is employed for liquid. Scattering phenomena of the droplets are captured by the high-speed digital camera. Distribution of the droplet diameter is evaluated from these images and distributions of horizontal flying velocity component and angle of the droplets are measured by human visual observation of images. Liquid filaments are stretched outward from the stagnant liquid layer on lateral surface of disk edge by centrifugal force. Two main peaks appear in the distribution of the scattered droplet diameter and they are originated from large terminal droplets and small droplets generated from filamentwise breakup. Most of the scattered droplets fly slightly inside of the tangential direction of the disk edge. The water droplets splashed from the disk scatters with regularity compared with ethanol droplets.

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M. Munekata, T. Oseto, H. Kurishima and H. Yshikawa, "Effect of Disk Edge Profile on Scattering Characteristics of Liquid Droplets Splashed from Spinning Disk," Open Journal of Fluid Dynamics, Vol. 3 No. 2A, 2013, pp. 22-27. doi: 10.4236/ojfd.2013.32A004.

Conflicts of Interest

The authors declare no conflicts of interest.


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