Abstract
Secondary breakup is a common phenomenon in nature, as well as in industrial applications. The secondary breakup of Carboxymethyl cellulose (CMC) droplets in a continuous air jet flow is investigated experimentally by a high-speed digital camera. Through varying the Weber number and the Ohnesorge number in the experiment, the breakup morphology, deformation stage, and breakup regime map are discussed in detail. The results show that the breakup modes of CMC droplet are consistent with that of water droplets in the Weber number range from 8 to 50 considered in the experiment. The number of nodes generated at the toroidal rim of the CMC droplet is verified to be the same as that of water droplet, following “the combined R-T/aerodynamic drag” mechanism. However, the breakup results of CMC droplets and water droplets are significantly different. The liquid ring and nodes produced by CMC droplets cannot disintegrate completely under the action of aerodynamic forces. In different breakup modes, the effective Ohnesorge number of CMC droplets has different influences on the cross stream diameter time-wise evolution and maximum deformation. The corresponding correlations for the above characteristics are developed in this paper. Finally, the breakup regime map of CMC droplets is produced by the Weber number and the effective Ohnesorge number.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
