Affiliations: Département de Génie
Mécanique, Université de Sherbrooke, Sherbrooke, QC,
J1K2R1, Canada | FEMTO-ST-UMR 6174, Dépt CREST,
Université de Franche-Comté, Belfort F-90000, France.
E-mail: [email protected]
Abstract: The present study deals with the visualization of the droplet
condensation phenomenon that can occur in ejectors powered by moist air. The
condensation process is visualized through a numerical model of non-equilibrium
condensation in high speed flows implemented by the present authors in a CFD
code. The evolution of the region of condensation in the ejector with the
primary stagnation pressure is examined both in the case without secondary
flows and in the case with free entrainment of induced air. Laser tomography
visualization is used to validate the computational results. The effects of
some parameters such as the primary stagnation pressure and the humidity ratio
in the primary and secondary air flows are also examined. Limitations of the
present numerical model are discussed.