The passage-averaged flow model was proved to be a more rigorous and complicated model than the mixing plane model in the flow prediction of multi-stage turbomachinery using the steady-state method. In the present work, the novel time-and passage-averaging operators are applied and a reduced average-passage N-S equation system is derived, in which the bodyforce and the blockage factor are eliminated. In order to consider the time-averaged effect of the periodic unsteadiness, a semi-empirical model with the interface approach is employed to evaluate the deterministic stresses instead of overlapping domain approach. Finally, two computations for a tested centrifugal compressor are performed and compared with the corresponding experimental data to verify the reduced passage-averaged equation system and the corresponding numerical method: one is the solution of the reduced passage-averaged equations with a semiempirical model and; the other is that of the steady Navier-Stokes equations with the mixing plane.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.