EXPERIMENTAL ANALYSIS OF TWO-PHASE FLOW THROUGH CYLINDERICAL OBSTRUCTION IN VERTICAL PIPE

The two-phase flow through vertical transparent pipe is investigated experimentally. The experimental rig designed to achieve the measurements of pressure drop for various combinations of phases, flow pattern regimes such as bubbly, slug and annular, with various range of water and air volumetric high speed camera . The air volumetric ranged from 8.3334 L/min to 25 l/min, while the water volumetric ranged from 5 l/min to 20 l/min and of 50 mm internal diameter along 1 m length. The measured of the pressure will be done using four pressure sensors along test pipe. The measured pressure values were used for different air volumetric and different water volumetric. It has been found that the measuring of pressure gradient through the distance of rig pipe are inversely changed with air volumetric. In addition, it has been analyzed the flow pattern through obstruction, it has showed one phase flow, bubbly and slug flow.