Numerical Study Of Inlet Gas Velocity Effects On Droplet Behaviors In Microchannel

In this study, the numerical simulation of liquid water behaviors inside a single straight microchannel is conducted using Volume of fluid (VOF) method and dynamic contact angle (DCA) model. Two different gas inlet velocities are considered in the simulation to investigate the gas velocity effects on the droplet behaviors. The general process of the liquid water evolvement inside the channel are presented and discussed. The results indicate that the water droplet will form into long slug flow under lower gas inlet velocity and thin film flow under higher gas inlet velocity.