English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In this study, we perform a numerical analysis of the instability of aligament in shear flow and investigate the effects of air-liquid shear on thegrowth rate of the ligament interface, breakup time, and droplet diameterformed by the breakup. The ligament is stretched in the flow direction by theshearing of airflow. Furthermore, as the influence of the shear flow increases,the ligament becomes deformed into a liquid sheet, and a perforation forms atthe center of the liquid sheet. The liquid sheet breaks up due to the growth ofthe perforation and contracts under the influence of surface tension, formingtwo ligaments with diameters smaller than that of the original ligament. Theshearing of the airflow causes the original ligament to elongate, and thecross-section of the ligament becomes elliptical, which increases instability.As a result, the growth rate of the ligament exceeds the theoretical value, andincreases with increasing wavenumber of the initial disturbance. Therefore, thediameter of the formed droplets in shear flow decreases due to the increase inthe wavenumber that governs the breakup of the ligament, and because the growthrate increases, the breakup time for the ligament decreases. As the velocitydifference of the shear flow increases, constrictions of the ligament formearlier and the diameter of the satellite droplet increases. As the diameter ofthe satellite droplet increases and that of the main droplet decreases, thedispersion of the droplet diameter decreases, making the diameter uniform.

Numerical analysis of ligament instability and breakup in shear flow