Experimental and numerical analysis of supersonic air ejector

An experimental and computational study of the flow pattern in a refrigerant ejector. Validation of turbulence models and real-gas effects

“…They concluded that the RNG k À ε turbulence model agrees best with experiments for predicting of entrainment ratio and shock wave structures. The same conclusion was reported Chong et al [7]; who used static wall pressure measurements to validate the CFD model. Gagan et al [10] employed the PIV technique to validate an ejector CFD model and conclude that the best consistency in the flow pattern corresponds to the standard k À ε turbulence model.…”

Energy efficiency analysis of steam ejector and electric vacuum pump for a turbine condenser air extraction system based on supervised machine learning modelling

“…7. Several other authors described the thermodynamic transformation of the SEPS in a similar way [22,5,42].…”

“…The LRVP for Tokamak have analysed and designed by Khan et al [3]. Zhu et al [4] and Chong et al [5] proposed a 2D exponential model to predict the velocity distribution in ejector, however the pressure is still assumed to be uniform in the radial direction. Sözen et al [6] explored the exergy analysis of an ejector-absorption heat transformer using artificial neural network approach.…”

Thermodynamic Modelling of Supersonic Gas Ejector with Droplets

“…Concerning two-phase operation, comparisons were made regarding the choked mass flow through a convergent divergent nozzle and the effect of the primary inlet saturation on the entrainment ratio. Figure 5 compares the predicted entrainment ratio values against experimental data from different studies [8,10,24,[34][35][36] with varying dimensions, working gases and operating conditions. As a first step, friction and mixing losses are neglected here such that:…”