N. Peake
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View article: Recursive moment computation in Filon methods and application to high-frequency wave scattering in two dimensions
Recursive moment computation in Filon methods and application to high-frequency wave scattering in two dimensions Open
We study the efficient approximation of highly oscillatory integrals using Filon methods. A crucial step in the implementation of these methods is the accurate and fast computation of the Filon quadrature moments. In this work we demonstra…
View article: Recursive moment computation in Filon methods and application to high-frequency wave scattering in two dimensions
Recursive moment computation in Filon methods and application to high-frequency wave scattering in two dimensions Open
We study the efficient approximation of highly oscillatory integrals using Filon methods. A crucial step in the implementation of these methods is the accurate and fast computation of the Filon quadrature moments. In this work we demonstra…
View article: Aeroacoustics of Silent Owl Flight
Aeroacoustics of Silent Owl Flight Open
The ability of some species of owl to fly in effective silence is unique among birds and provides a distinct hunting advantage, but it remains a mystery as to exactly what aspects of the owl and its flight are responsible for this dramatic…
View article: Vortex Sound Models: Passive and Active Noise Control
Vortex Sound Models: Passive and Active Noise Control Open
© 2018 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Simple models of vortex sound, considering the motion of a line vortex past an object, have been used to determine the far-field noise due to an id…
View article: Does flutter prevent drag reduction by reconfiguration?
Does flutter prevent drag reduction by reconfiguration? Open
The static reconfiguration of flexible beams exposed to transverse flows is classically known to reduce the drag these structures have to withstand. But the more a structure bends, the more parallel to the flow it becomes, and flexible bea…
View article: Acoustic Scattering for Rotational and Translational Symmetric Structures in Nonuniform Potential Flow
Acoustic Scattering for Rotational and Translational Symmetric Structures in Nonuniform Potential Flow Open
An efficient approach is proposed to predict acoustic scattering with nonuniform potential flow effects for structures with rotational and translational symmetries. The convected wave equation is transformed to Helmholtz and Laplace equati…
View article: Bioinspired Trailing-Edge Noise Control
Bioinspired Trailing-Edge Noise Control Open
Strategies for trailing edge noise control have been inspired by the downy canopy that covers the surface of exposed flight feathers of many owl species. Previous wind tunnel measurements demonstrate that canopies of similar characteristic…
View article: Fluid Flows driven by Oscillating Body Force
Fluid Flows driven by Oscillating Body Force Open
In this note we consider general formulation of Euler's equations for an inviscid incompressible homogeneous fluid with an oscillating body force. Our aim is to derive the averaged equations for these flows with the help of two-timing meth…
View article: Spectral study of the Laplace–Beltrami operator arising in the problem of acoustic wave scattering by a quarter-plane
Spectral study of the Laplace–Beltrami operator arising in the problem of acoustic wave scattering by a quarter-plane Open
The Laplace-Beltrami operator (LBO) on a sphere with a cut arises when considering the problem of wave scattering by a quarter-plane. Recent methods developed for sound-soft (Dirichlet) and sound-hard (Neumann) quarter-planes rely on an a …