Experimental Investigation of Two-Phase Flow (Gas –Liquid) Around A Straight Hydrofoil In Rectangular channel

Abstract

This paper includes experimental investigation to study the effects of air and water discharge for different angle of attacks for straight hydrofoil and built an experimental rig to study the two phase flow. In this work three different angle of attack (θ = 0°, 15° and 30°) are considered .The water discharge (Qw) at different quantities (Qw=12, 17, 27 and 37 L/min) and different air discharge (Qa=5, 15, 25 and 35 L/min) were taken. The maximum inlet velocity at the test section for air is (4.758 m/s) and for water is (1.217 m/s). The results show that when the angle of attack increase at constant amount of air and water discharge the pressure difference increased at inlet and outlet the rectangular channels. The results explain that when both water and air discharge at constant angle of attack the pressure difference increased at inlet and outlet the rectangular channels.