Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/3473
Title: Slot width augmentation in a slotted-wall transonic linear cascade wind tunnel
Authors: Rona, Aldo
Paciorri, Renato
Geron, Marco
Ince, N.Z.
First Published: 2004
Citation: Proceedings of the 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, USA, 5-8 January, 2004, pp. 1-11
Abstract: Transonic tests in linear cascade wind tunnels can suffer from significant test section boundary interference effects in pitch. A slotted tailboard has been designed and optimised with an in-house Euler numerical method to reduce such effects. Wind tunnel measurements on an overspeed Mach 1.27 discharge from a Rolls-Royce T2 cascade, featuring strong end-wall shock-induced interference, showed a 77% reduction in the flow pitchwise periodicity error with the optimised tailboard, with respect to the baseline open-jet cascade flow. Two-dimensional Euler predictions were also cross-validated against a three-dimensional Reynolds averaged computation, to explore the three-dimensionality of the discharge.
Links: http://hdl.handle.net/2381/3473
Type: Conference paper
Description: This paper was published as Proceedings of the 42nd AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, USA, 5-8 January, 2004, pp. 1-11. It is also available from http://www.aiaa.org/content.cfm?pageid=298
Appears in Collections:Conference Papers & Presentations, Dept. of Engineering

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