Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Ayton, Lorna"'
Dynamic Mode Decomposition (DMD) describes complex dynamic processes through a hierarchy of simpler coherent features. DMD is regularly used to understand the fundamental characteristics of turbulence and is closely related to Koopman operators. Howe
Externí odkaz:
http://arxiv.org/abs/2205.09779
Autor:
Colbrook, Matthew J., Ayton, Lorna J.
We develop a rapid and accurate contour method for the solution of time-fractional PDEs. The method inverts the Laplace transform via an optimised stable quadrature rule, suitable for infinite-dimensional operators, whose error decreases like $\exp(-
Externí odkaz:
http://arxiv.org/abs/2111.13070
Autor:
Lyu, Benshuai, Xu, Jiali, Geyer, Thomas F., Chaitanya, Paruchuri, Ye, Qingqing, Cui, Jiahuan, Ayton, Lorna
Publikováno v:
In Applied Acoustics 15 January 2024 216
Autor:
Baddoo, Peter J., Ayton, Lorna J.
We present a constructive procedure for the calculation of 2-D potential flows in periodic domains with multiple boundaries per period window. The solution requires two steps: (i) a conformal mapping from a canonical circular domain to the physical t
Externí odkaz:
http://arxiv.org/abs/2001.00859
Publikováno v:
J. Fluid Mech. 891 (2020) R2
"Ground effect" refers to the enhanced performance enjoyed by fliers or swimmers operating close to the ground. We derive a number of exact solutions for this phenomenon, thereby elucidating the underlying physical mechanisms involved in ground effec
Externí odkaz:
http://arxiv.org/abs/1912.02713
Acoustic scattering by cascades with complex boundary conditions: compliance, porosity and impedance
Autor:
Baddoo, Peter J., Ayton, Lorna J.
We present a solution for the scattered field caused by an incident wave interacting with an infinite cascade of blades with complex boundary conditions. This extends previous studies by allowing the blades to be compliant, porous or satisfying a gen
Externí odkaz:
http://arxiv.org/abs/1911.09015
Autor:
Lyu, Benshuai, Ayton, Lorna J.
Leading- and trailing-edge serrations have been widely used to reduce the leading- and trailing-edge noise in applications such as contra-rotating fans and large wind turbines. Recent studies show that these two noise problems can be modelled analyti
Externí odkaz:
http://arxiv.org/abs/1906.02645
Autor:
Ayton, Lorna J, Kim, Jae Wook
This paper presents an analytic solution for the sound generated by an unsteady gust interacting with a semi-infinite flat plate with a serrated leading edge in a background steady uniform flow. Viscous and non-linear effects are neglected. The Wiene
Externí odkaz:
http://arxiv.org/abs/1805.05118
Autor:
Palleja-Cabre, Sergi, Chaitanya, Paruchuri, Joseph, Phillip, Kim, Jae Wook, Priddin, Matthew J., Ayton, Lorna J., Geyer, Thomas F., Chong, Tze Pei
Publikováno v:
In Journal of Sound and Vibration 22 December 2022 541