The droplets and film behaviors in supersonic separator by using three-field two-fluid model with heterogenous condensation

Supersonic separator is a kind of natural gas dehydration device with great potential, but its internal mass and heat transfer process has not been fully studied. In this study, novel three-field two-fluid model described by Eulerian-Eulerian approach for supersonic considering the between gas, liquid droplets, film was developed validated. The interphase slip, latent heat, flux, phase change rate were It revealed that maximum centrifugal slip velocity droplets can reach 24.9 m s?1. 5.3 × 108 J m?3 from to during condensation, minimum -3.4 evaporation. thickness swirling at wet outlet 21 ?m, 47 74 ?m 89 respectively. temperature decreases 304.1 K due deposition, where flux 0.74 MW m?2. Besides, frequency interfacial wave obtained using cross-correlation algorithm, their values 11.07 Hz 1.49 s?1, addition, achieving higher efficiency, optimal value foreign droplet concentration should be 0.01 kg m?3. separation efficiency dew point depression A are 85.11% 40.32 °C, without over-predicts efficiency.