An Experimental Investigation on the Compressible Spray-type Two-phase (Gas-liquid) Fluid

Abstract

An experimental apparatus for the supersonic flow of a spray-type two-phase (gas-liquid) fluid (the supersonic two-phase fluid tunnel) was made to investigate the compressible properties of this two-phase fluid. As for this supersonic two-phase fluid flow, the separate velocity of gas-phase and liquid-one, the ratio of gas-liquid mass flow rates, the ratio of gas-liquid volumetric flow rates, the gas-liquid volumetric ratio, the static pressure in the downstrem and the upstream of shock wave, the stagnation pressure in front of the blunt body, etc. were measured in this supersonic two-phase fluid tunnel and from these measured values, based on the theoretical treatment of this compressible two-phase fluid, the Mach number of this flow, the velocity of sound in this two-phase fluid, etc. were calculated. Comparisons between the experimental values and theoretical ones were done from a physical point of view. The experimental results fairly well coincided with the theoretical predictions.