Optimization stagger angles of blade rows of a multistage high pressure compressor

This article presents the results of two optimization tasks of seven-stage high pressure compressor are presented in this paper. The goal of the first optimization task was to improve the compressor efficiency at one operating mode (100% rotation frequency) by optimizing the blade stager angles of the guide vanes of the three first stages. The goal of the second optimization task was to improve the compressor efficiency at two operating modes by optimizing the blade stager angles of all blade rows.