Fluid flow in steam jet ejector was simulated by employing wet steam model for transonic flow. The study focused on fluid flow in mixing chamber of steam jet ejector and compared difference in simulation results between ideal gas and wet steam models. Higher entrainment ratio of steam jet ejector

smaller localized high pressure produced by shock waves near nozzle outlet and ejector inlet

and less reduction in velocity and temperature of primary steam were observed in wet steam model than in ideal gas model.