SET Proceedings 2978-4387 Caravel Press 10.65582/set.2005.063 2005.063 Simulation on Phase Change in Supersonic Flow in Ejector ShenShengqiang LiHaijun Department of Power Engineering, Dalian University of Technology, Dalian, China Electromechanics & Materials Engineering College, Dalian Maritime University, Dalian,China 23092005 4 1 978-7-112-07718-2 280 284 23 September 2005 © 2005 Copyright WSSET 2005

For considering the probably existed phase change phenomena in ejector, the real steam properties were adopted in the computation of two dimensional fluid flow and performance of an ejector. The results present that the condensation happens in converging-diverging nozzle and in mixing chamber. The water content could reach near 10% at the outlet of the primary nozzle. It makes a two-phase flow. Compared the computational results under different motive fluid superheating conditions, velocity distributions in the nozzle have a great change. The entrainment ratio increases about 3.7%.

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