Surface wettability effects on evaporating meniscus in nanochannels

Systematic investigations of self-regulation evaporating menisci in nanochannels are conducted as a function the surface wettability under various applied heat flux conditions. The simulation system is designed to result steady-state response so that stable meniscus region can be produced. Non-equilibrium molecular dynamics simulations performed for argon fluid platinum channels. Depending on and pinned regime or it recede inside channel. Adsorbed layer formation becomes evident latter case. Higher enables thicker adsorbed reducing radius curvature overall evaporation rate reduces thermal resistance evaporator, providing higher critical flux. While from negligible macroscopic systems, contribute up 80% total mass nanoscale systems. current work provides insights into capillary-driven thin-film ultra-small channels findings meaningful next-generation management