Comparative study of R744 ejector CFD models
Original version
10.18462/iir.compr.2021.0380Abstract
This work presents a comparative study of four different R744 ejector CFD models at a wide range of operating conditions. The models compared are the homogeneous equilibrium model, the UDRGM mixture model, a homogeneous relaxation model and a Eulerian two-fluid model. The results are also compared to experimental data available in the literature. The models are tested for high and low operating pressures, and the effects of nonequilibrium are discussed. The results are discussed and recommendations for model developments are suggested.