Evaporation of a sessile drop with pinned or receding contact line on a substrate with different thermophysical properties

Interfacial Temperature Discontinuities in a Thin Liquid Layer during Evaporation

“…Therefore, evaporation also absorbed heat from the vapor phase, which cooled the vapor temperature neighboring the liquid-vapor interface. Actually, recent numerical work by Saada et al (2013) also found that the needed energy for evaporation was taken mainly from the gas phase when the efficiency of heat transferring was low.…”

The lifetimes of evaporating sessile droplets are significantly extended by strong thermal effects

“…However, all of these works use the basic diffusion-limited model for droplet evaporation (see, for example, Popov 2005) which does not account for the variation of the saturation concentration of the vapour with temperature. As a result, none of these works accounts for the influence of the thermal properties of the system on the evaporation of the droplets, which can be significant (see, for example, Dunn et al 2008, 2009a,b, Sefiane & Bennacer 2011, Sobac & Brutin 2012, Ait Saada, Chikh and Tadrist 2013, Lopes et al 2013and Diddens et al 2017. The aim of the present work is to gain further insight into this issue by using an extended model to obtain asymptotic solutions for the evolution, and hence explicit expressions for the lifetimes, of droplets when the influence of the thermal properties of the system is strong.…”

“…Ait Saada et al (2013) considered a nonlinear dependence of c sat on T.) There is no mass flux through the unwetted part of the substrate, and far from the droplet c approaches its ambient value Hc sat (T ∞ ), where H (0 H 1) denotes the relative saturation of the ambient atmosphere. The local evaporative mass flux from the droplet, denoted by J = J(r, t), is given by J = −D∇c · n, where D is the coefficient of diffusion of vapour in the atmosphere and n is the unit outward normal to the free surface of the droplet.…”

Evaporation, boiling and explosive breakup of heterogeneous droplet in a high-temperature gas

“…The obtained short times s e arises from the high reaction rate (in comparison with [38][39][40][41][42][43][44][45][46]) under intensive energy supply from the high temperature combustion products. The conditions of boiling found in our experiments as well as the ejection of small droplets from the main drop, formation and growth of bubbles essentially differ from the results obtained in the experiments reported in [38][39][40][41][42][43][44][45][46] with hot substrates, walls and various channels, tubes. At the same time, the special analysis of the processes of formation and growth of bubbles under the considered conditions is important.…”