D
Dwight Barkley
Researcher at University of Warwick
Publications - 108
Citations - 7523
Dwight Barkley is an academic researcher from University of Warwick. The author has contributed to research in topics: Reynolds number & Turbulence. The author has an hindex of 38, co-authored 104 publications receiving 6830 citations. Previous affiliations of Dwight Barkley include Centre national de la recherche scientifique & Princeton University.
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Three-dimensional Floquet stability analysis of the wake of a circular cylinder
TL;DR: In this paper, a global numerical stability analysis of the periodic wake of a circular cylinder for Reynolds numbers between 140 and 300 is presented, showing that the two-dimensional wake becomes (absolutely) linearly unstable to three-dimensional perturbations at a critical Reynolds number of 1885±10.
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The onset of turbulence in pipe flow
Kerstin Avila,David Moxey,Alberto de Lozar,Marc Avila,Dwight Barkley,Dwight Barkley,Björn Hof +6 more
TL;DR: It is shown that in pipes, turbulence that is transient at low Reynolds numbers becomes sustained at a distinct critical point and is intrinsic to the nature of fluid turbulence.
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A model for fast computer simulation of waves in excitable media
TL;DR: An algorithm is devised for efficient simulation of waves in excitable media with spatio-temporal resolution and provides accurate solution of the underlying reaction-diffusion equations at small computational cost.
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Linear analysis of the cylinder wake mean flow
TL;DR: In this article, a 2D linear stability analysis was performed on the mean flow of laminar vortex shedding from a circular cylinder for Reynolds numbers between 46 and 180, and it was shown that the eigenfrequency of mean flow tracks almost exactly the Strouhal number of vortex shedding.
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Three-dimensional instability in flow over a backward-facing step
TL;DR: In this paper, a three-dimensional computational stability analysis of flow over a backward-facing step with an expansion ratio (outlet to inlet height) of 2 at Reynolds numbers between 450 and 1050 is presented.