Flow Control and Aerodynamic Performance of Axial Flow Turbine

Dear Colleagues,

Axial flow turbines are critical components in gas and steam turbine engines, where efficiency, reliability, and performance are paramount. This Special Issue focuses on recent advances in controlling flow phenomena within axial turbines, aiming to enhance their aerodynamic performance under varying operational conditions. Key challenges include managing secondary flows, boundary layer separation, tip leakage and wake mixing—factors that significantly contribute to aerodynamic losses. Emerging flow control techniques, both passive (e.g., end wall contouring, fillets, and vortex generators) and active (e.g., synthetic jets and pulsed blowing), offer promising solutions to mitigate these losses and improve turbine stage efficiency. The integration of accurate low-, mid-, and high-fidelity computational studies, experimental studies, and machine learning approaches enables deeper insight into flow behavior and control strategies. Contributions are invited that explore novel methodologies, validate control techniques, or present design optimizations that lead to improved flow uniformity, reduced losses, and enhanced overall turbine performance. This Issue aims to bridge the gap between fundamental research and practical implementation in industrial axial turbine design.

Dr. Dhuree Seth
Dr. Sam Salehian
Guest Editors

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