Study of the evaporation kinetics of pure and binary droplets: volatility effect

Solutal and Gravitational Effects during Binary Mixture Droplets Evaporation

“…The selective evaporation of components within these droplets results in inhomogeneous components distribution, where one component's evaporation may be favored over the other. This phenomenon has been observed in studies such as (Sefiane et al 2003;Oh et al 2022;Kim et al 2016;Marin et al 2019;Brenne et al 2007;Diddens et al 2017;Foudhil et al 2021).…”

“…These interactions between components can lead to a coupling of various mechanisms and the emergence of strong flow structures (Oh et al 2022;Kim et al 2016;Marin et al 2019;Brenne et al 2007;Diddens et al 2017;Foudhil et al 2021), such as solutal Marangoni flows.…”

“…Earlier work by Controlling evaporation rates is crucial in various applications. Research, such as that conducted by Foudhil et al (2021), highlights how the addition of butanol to water can enhance evaporation and reduce droplet lifetime. However, differing conclusions emerge from various studies on the differences or similarities in evaporation dynamics and rates between sessile and pendant droplets under similar experimental conditions (Devlin et al 2016;Tonini 2009).…”

Use of Heating Configuration to Control Marangoni Circulation during Droplet Evaporation

“…In this study, we assumed a 2D geometry with the cylindrical coordinates r and z [20,52,53]. The droplet took the form of a spherical cap during evaporation and it was assumed to be pinned [22,24,25,31].…”

“…In a continuation of these works, the behaviors of droplets of binary and ternary mixtures were examined in [28][29][30]. A comparative study of the volatility of pure droplets (water, ethanol, and butanol) and strongly diluted binary mixtures (water-butanol and water-ethanol) was conducted numerically and experimentally in [31] and showed that the volatility of the liquid sometimes exhibited a different behavior in binary droplets compared to pure ones.…”