Étude, conception et analyse des performances d’un compresseur centrifuge

Abstract

This study focuses on the modeling, simulation, and analysis of the aerodynamic performance of a centrifugal compressor using computational fluid dynamics (CFD) with ANSYS CFX software. A numerical model was developed to solve the conservation equations for mass, momentum, and energy, while incorporating appropriate physical models, including the k-ω SST turbulence model and rotational conditions. In a second step, a multi-response optimization approach was implemented to improve compressor performance. This optimization aims simultaneously to maximize the compression ratio and isentropic efficiency while reducing power consumption. After presenting the desirability function method, the optimization was applied to the response surfaces of the three parameters studied using Design-Expert 13 software. Finally, analysis of the optimal profile, the interactions between the parameters, and the robustness of the model allowed for the identification of an optimal operating point, validated under near-real-world conditions.