Unveiling the Secondary Flow Interface: Enhancing Gas Turbine Blade Stage Efficiency

Abstract

This study investigates the intricate dynamics of secondary flow interactions within the blade stage of a gas turbine and their profound impact on aerodynamic performance and operational efficiency in aerospace propulsion systems. High-fidelity computational fluid dynamics (CFD) simulations were conducted on a dual-rotor, dual-stator configuration to analyze airflow behavior, revealing significant pressure gradients, velocity variations, and vorticity patterns. These secondary flow structures contribute to aerodynamic losses, reducing turbine efficiency and influencing thermal management. The findings highlight the critical role of secondary effects in determining overall turbine performance and provide valuable insights into optimizing blade geometries and flow control strategies. This research establishes a foundation for the development of next-generation gas turbines with improved aerodynamic efficiency and reduced energy dissipation.