Coalescence-induced jumping of in-plane moving droplets: Effects of initial velocity and sideslip angle

Sihang Gao, Zhiping Yuan*, Xiaomin Wu

*此作品的通讯作者

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2 引用 (Scopus)

摘要

Herein, the effects of initial velocity and sideslip angle on the jumping velocity, energy conversion, and morphological evolution of the coalesced droplet were investigated. The results show that the initial velocity and sideslip angle negatively affect the jumping velocity. As the Weber number (We) of the moving droplet increases, the main source of the total kinetic energy of the coalesced droplet changes from the released surface energy to the initial kinetic energy of the moving droplet. The initial velocity and sideslip angle cause an asymmetric evolution of the droplet morphology and affect the speed of the coalescence process. Based on the motion decomposition method, the coalescence-induced jumping process comprises two types of coalescence: centripetal coalescence and tangential coalescence. The porportion of the two coalescence types is affected by the We number and sideslip angle, which yields different jumping velocities.

源语言英语
文章编号118247
期刊Chemical Engineering Science
265
DOI
出版状态已出版 - 16 1月 2023
已对外发布

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