Optimization of the geometry of profile gridsin stages of compressors using the diffuser factor

Abstract

Methods for optimizing the degree of reactivity and density of the cascade profiles of blade rows and stages in the design of GTE compressors are considered. Dependencies are proposed that allow at an early design stage to take into account the peculiarities of the first and intermediate stages. It is shown how, taking into account the selected values of ?, the optimal values of the curvature and density of the profile gratings are determined using the Lieblein diffusion conditions. Corrections for the density are proposed, taking into account the supersonic regime of leakage onto the grid.