A PHYSICAL MODELING STUDY OF FLUID-FLOW PHENOMENA IN GAS-SLAG SYSTEMS

With the advent of more intense iron and steelmaking processes like sm elting-reduction, gas evolution in the slag reaches unprecedented leve ls. In order to understand the fluid mechanics associated with gas-sla g systems, gases were injected into a variety of room-temperature liqu ids at high superficial velocity (0.18 to 4.0 m/s). The void fraction was measured with a gamma ray densitometer. A churn-turbulent flow beh avior was obtained in all gas-liquid systems. Drift-flux models proved useful in the analysis of flow behavior. Drift-flux analysis of avail able smelter data is also consistent with the present data.