Design of a New Test Rig to Investigate Transonic External Fan Cowl Separation
56th 3AF International Conference on Applied Aerodynamics
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Sabnis, K., Boscagli, L., Swarthout, A., Babinsky, H., MacManus, D., & Sheaf, C. (2022). Design of a New Test Rig to Investigate Transonic External Fan Cowl Separation. 56th 3AF International Conference on Applied Aerodynamics. https://doi.org/10.17863/CAM.83799
Ultra high-bypass ratio engines, which show considerable promise in reducing the environmental impact of commercial aviation, generally adopt slim fan cowl profiles. These geometries can be more sensitive to separation on the external surfaces in engine windmilling con- ditions during take-off climb out or during cruise. This paper describes the development of a two-dimensional wind tunnel rig which can accurately replicate the separation mechanisms experienced by real aero-engine nacelles. This design process highlights the importance of considering factors such as Reynolds-number effects, tunnel-wall effects, the two-dimensional nature of the rig, and the tunnel boundary layers.
This project has received funding from the Clean Sky 2 Joint Undertaking (JU) under grant agreement No 101007598. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and the Clean Sky 2 JU members other than the Union.
European Commission Horizon 2020 (H2020) Industrial Leadership (IL) (101007598)
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External DOI: https://doi.org/10.17863/CAM.83799
This record's URL: https://www.repository.cam.ac.uk/handle/1810/336382
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