Figure 3
From: Confinement suppresses instabilities in particle-laden droplets
Velocity as a function of spatial variation in evaporation rate. Inset shows the magnified view of the channel data. Heated data is taken from [ref. 15]. For open and heated cases, J variation is determined using the equation \(J=-D(\frac{\partial c}{\partial r}\,{\cos }\,\alpha +\frac{\partial c}{\partial z}\,{\sin }\,\alpha )\) 18 where D: diffusion coefficient, c: vapor concentration and α: as shown in the Fig. 1b. For confined droplet, J′ variation is in the azimuthal direction, i.e., \({\rm{\Delta }}{J}_{c}={J}_{exit}^{^{\prime} }-{J}_{wall}^{^{\prime} }\approx {J}_{exit}^{^{\prime} }\approx {J}_{channel}^{^{\prime} }\).
