Interface Heat Transfer of Horizontal Co-current Liquid-liquid Stratified Flow

抄録

Co-current stratified flow of liquid metal and water was investigated in a horizontal rectangular channel. Position of the interface, pressure drop and direct contact heat transfer between these immiscible liquids were measured in a fully developed flow. A turbulence model was proposed to explain the experimental results considering that the turbulence is damped near the liquid-liquid interface by surface tension. The analytical results are that (1) position of the interface mainly depends on the flow rate ratio of both liquids, that (2) the pressure drop is approximately proportional to square of the average velocity of water, and that (3)heat transfer rate at direct contact interface is several times higher than that of co-current flow separated by a thin solid plate.