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    • Thermocapillary migration of a fluid compound droplet
    Authors: Vinh T. Nguyen; Truong V. Vu; Phan H. Nguyen; Nang X. Ho; Binh D. Pham; Hoe D. Nguyen; Hung V. Vu;  Advisor: -;  Co-Author: - (2021)

    Compound and simple droplets have been studied and appeared in many life applications, e.g., drug processing and microfluidic systems. Many studies have been conducted on the thermocapillary effects on simple droplets, but similar studies on compound droplets are quite rare. Filling this missing gap, this paper presents the front-tracking-based simulation results of the thermocapillary effects on compound droplets in a certain limited domain. The compound droplet consists of a single inner core that is initially concentric with the outer one. Various dimensionless parameters including Reynolds number from 1 to 50, Marangoni number from 1 to 100, droplet radius ratio from 0.3 to 0.8, and viscosity ratios from 0.1 to 6.4 are varied to reveal their influences on the migration of a comp...