Numerical simulation of colloid evaporation in confined convective coating

Abstract eng:
Confined convective assembly coating based on the evaporation of a colloidal suspension including nanoparticles is investigated numerically solving the conservation equations of mass, momentum, and energy in the liquid-gas phases, the vapor mass fraction in the gas phase, and the particle concentration in the liquid phase. A sharp-interface level-set method for tracking the liquid-gas interface is extended to include the effects of phase change, contact angle and particle deposition. The computation demonstrates particle accumulation near the contact line. The present method is proved to be applicable to investigation of the effect of plate velocity on the particle deposition pattern in the confined convective coating.

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