A modified Euler-Lagrange-Euler approach for modelling homogeneous and heterogeneous condensing droplets and films in supersonic flows

The phase change in supersonic flows is of great interest many industrial applications including steam turbines, nozzles, ejectors and aircraft. However, the phenomenon still not fully understood due to completed flow behavior nucleation, condensation, film generation shock waves flows. In present study, we proposed a modified Euler-Lagrange-Euler model explore internal mechanism within separators. mutual heat mass transfer gaseous phase, droplets, liquid were simulated homogeneous nucleation growth was innovatively added ensure model's comprehensiveness. feasibility validated by experiments. Then, interaction heterogeneous condensation excavated for first time. results show droplet diameter's decrease or concentration's increase had significant inhibitory effect on condensation. Subsequently, swirl field's generation, dynamic evolution homogeneous/heterogeneous deposition, development, heat-mass between them separator analyzed using model. Furthermore, separation capacity evaluated considering co-action Results that increasing inlet concentration from 0.0001 kg/s 0.0025 can vapor efficiency dew point depression 61.39 % 84.74 19.03 K 28.28 K, respectively.