Print Email Facebook Twitter High-resolution turbofan intake flow characterization by automated stereoscopic-PIV in an industrial wind tunnel environment Title High-resolution turbofan intake flow characterization by automated stereoscopic-PIV in an industrial wind tunnel environment Author Ujjaini Kempaiah, K. (TU Delft Aerodynamics; LaVision) Piovesan, Tommaso (Cranfield University) Zachos, Pavlos K. (Cranfield University) Michaelis, Dirk (LaVision) Gebbink, Roy (German-Dutch Wind Tunnels) van Rooijen, Bart (German-Dutch Wind Tunnels) Prieto, Daniel Gil (Rolls-Royce plc) MacManus, David (Cranfield University) Sciacchitano, A. (TU Delft Aerodynamics) Sheaf, Christopher (Rolls-Royce plc) Date 2024 Abstract Unsteady inlet flow distortion can influence the stability and performance of any propulsion system, in particular for more novel, short and slim intakes of future aero-engine configurations. As such, the requirement for measurement methods able to provide high spatial resolution data is important to aid the understanding of these flow fields. This work presents flow field characterisations at a crossflow plane within a short aeroengine intake using stereoscopic particle image velocimetry (SPIV). A series of tests were conducted across a range of crosswind and high angle of attack conditions for a representative short and slim aspirated intake configuration at two operating points in terms of mass flow rate. The velocity maps were measured at a crossflow plane within the intake at an axial position L/D = 0.058 from where a fan is expected to be installed. The diameter of the measurement plane was 250 mm, and the final spatial resolution of the velocity fields had a vector pitch of 1.5 mm which is at least two orders of magnitude richer than conventional pressure-based distortion measurements. The work demonstrates the ability to perform robust non-intrusive flow measurements within modern intake systems in an industrial wind tunnel environment across a wide range of operating conditions; hence, it is suggested that SPIV can potentially become part of standard industrial testing. The results provide rich datasets that can notably improve our understanding of unsteady distortions and influence the design of novel, closely coupled engine-intake systems. Subject industrial wind tunnel testinginlet distortioninlet testingnon-intrusive measurementsparticle image velocimetryturbofanultra high bypass ration engines To reference this document use: http://resolver.tudelft.nl/uuid:e2fbd8b6-2a09-4eba-afaa-f5a3126b59f5 DOI https://doi.org/10.1088/1361-6501/ad0ea0 ISSN 0957-0233 Source Measurement Science and Technology, 35 (2) Part of collection Institutional Repository Document type journal article Rights © 2024 K. Ujjaini Kempaiah, Tommaso Piovesan, Pavlos K. Zachos, Dirk Michaelis, Roy Gebbink, Bart van Rooijen, Daniel Gil Prieto, David MacManus, A. Sciacchitano, Christopher Sheaf Files PDF Kempaiah_2024_Meas._Sci._ ... 025210.pdf 5.07 MB Close viewer /islandora/object/uuid:e2fbd8b6-2a09-4eba-afaa-f5a3126b59f5/datastream/OBJ/view