Contribution to droplet breakup analysis

A basic experiment has been developed to investigate the secondary breakup of droplets in high velocity airstreams. Monosized droplets are injected in the mixing layer of two co-flowing airflows. Various conditions have been tested, different initial drop sizes, different air and droplet velocities to evaluate the influence of the Weber number on breakup regimes. An image processing technique has been developed to measure droplet diameter. Compar isons with numerical simulation conclude this work. (C) 1999 Elsevier Scien ce Inc. All rights reserved.