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The Influence of Inlet Disturbances on the Post-Stall Behaviors in Compression System

Abstract

The object of this paper is to provide a reliable tool to carry out the parametrical studies of post-stall behaviors in multistage axial compression systems. An adapted version of the 1.5D Euler equations with additional source terms is discretized with a finite volume method and are solved in time by a fourth-order Runge–Kutta scheme. The equations are discretized at mid-span both inside the blade rows and the non-bladed regions. The source terms express the blade-flow interactions and are estimated by calculating the velocity triangles for each blade row. Additional source terms are introduced to represent the effects of inlet disturbances on post-stall behaviors and the physical analysis is therefore proposed to explain the phenomenon.

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Du, W., Yunfeng, X. & Lorenzini, G. The Influence of Inlet Disturbances on the Post-Stall Behaviors in Compression System. J. Engin. Thermophys. 27, 58–71 (2018). https://doi.org/10.1134/S1810232818010071

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