Pages 83-84
Pressure drop characteristic and mechanism of gas-liquid two-phase flow in micro channel is experimentally and numerically investigated. In the case of flow rate is relatively small. liquid and gas separate axially and liquid slugs tend to suspend in the channel due to the effect of surface tension force. To make the evaluation of the pressure drop due to the surface tension or viscosity force in relation to the secondly flow near the gas-liquid-solid surface, direct observation of flowing liquid slug shape by using high-speed video camera and direct numerical simulation of the flow behavior in the liquid slug is performed.
