35th Congress of the International Council of the Aeronautical Sciences

05 - Propulsion and Energy

EFFECT OF INTAKE AERODYNAMICS AND FLOW DISTORTION ON FAN STALL INCEPTION

J. Hueso-Rebassa¹, D. MacManus¹, F. Tejero¹, T. Williams, Cambridge University, United Kingdom; Y. Frey², G. Thorne²; ¹Cranfield University, United Kingdom ;²Rolls-Royce plc., United Kingdom

This work investigates how intake aerodynamics and unsteady distortion influence fan stall inception for a short aero engine intake in crosswind using URANS CFD. A relative frame distortion analysis identifies mechanisms driving rotating stall formation. The findings highlight limitations of conventional metrics and improve understanding of distortion induced stall for future intake–fan design.


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DOI: 10.71945/icas2026_0111