Abstract
High-speed two-phase flow is very important in developing the ejector for refrigeration system and in the total-flow system of a geothermal power plant. At the mixing section of the two-phase flow ejector, the supersonic driving flow mixes with the subsonic suction flow which generates shock and expansion fans. This study focuses on the characteristic of the two-phase flow in which the phase-change occurs. The expansion fans were calculated using the CIP method. When the equilibrium mach number is larger than 1, the centered expansion fan is calculated in supersonic mist flow with small relaxation time. On the other hands, the start point of expansion fan is move to upstream, and the convex shape of expansion fan is appeared for larger relaxation time. We found out that the different type of expansion fans according to the speed of the phase-change.
