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Alan McAlpine
Researcher at University of Southampton
Publications - 57
Citations - 1058
Alan McAlpine is an academic researcher from University of Southampton. The author has contributed to research in topics: Turbofan & Duct (flow). The author has an hindex of 16, co-authored 50 publications receiving 949 citations. Previous affiliations of Alan McAlpine include Rolls-Royce Holdings & University of Bristol.
Papers
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Boundary-layer instability noise on aerofoils
TL;DR: In this article, the authors investigated the tonal noise generation mechanism on aerofoils at moderate Reynolds number and found the presence of strongly amplified boundary-layer instabilities in a region of separated shear flow just upstream of the trailing edge.
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On the Generation of Discrete Frequency Tones by the Flow around an Aerofoil
TL;DR: In this paper, the authors investigated the effect of the region of separated flow close to the trailing edge of an aerofoil on the stability of the boundary-layer flow over the aero-oil.
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On the prediction of “buzz-saw” noise in aero-engine inlet ducts
Alan McAlpine,M.J. Fisher +1 more
TL;DR: In this article, the non-linear propagation of a high-amplitude sawtooth waveform spiralling around a duct is calculated by two numerical simulation models and their validation is discussed critically.
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On the spatio-temporal development of small perturbations of Jeffery-Hamel flows
Alan McAlpine,P. G. Drazin +1 more
TL;DR: In this paper, a new linear theory of small two-dimensional perturbations of a Jeffery-Hamel flow of a viscous incompressible fluid is presented to understand better the stability of the steady flow driven between inclined plane walls by a line source at the intersection of the walls.
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Acoustic scattering by an axially-segmented turbofan inlet duct liner at supersonic fan speeds
TL;DR: In this paper, an axially segmented cavity liner is proposed to improve the attenuation of fan tones at high supersonic fan speeds, where the rotor-alone pressure field is well cut-on.