Predicting evaporation rates of droplet arrays

The evaporation of multiple sessile droplets is both scientifically interesting and practically important, occurring in many natural industrial applications. Although there are simple analytic expressions to predict rates single droplets, no such frameworks for general configurations arbitrary size, contact angle or spacing. However, a recent theoretical contribution by Masoud, Howell & Stone ( J. Fluid Mech. , vol. 927, 2021, R4) shows how considerable insight can be gained into the without having either obtain solution concentration vapour atmosphere perform direct numerical simulations full problem. predictions show excellent agreement with all configurations, only deviating 25 % most confined droplets.