Journal ArticleDOI
Downstream evolution of the Bénard-von Kármán instability.
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This article is published in Physical Review E.The article was published on 1994-07-01. It has received 74 citations till now. The article focuses on the topics: Vortex shedding & Kármán vortex street.read more
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GLOBAL INSTABILITIES IN SPATIALLY DEVELOPING FLOWS: Non-Normality and Nonlinearity
TL;DR: In this paper, the dynamics of open flows are considered as a superposition of linear or nonlinear instability waves that behave at each streamwise station as if the flow were homogeneous in the streamwise direction.
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Structural sensitivity of the first instability of the cylinder wake
Flavio Giannetti,Paolo Luchini +1 more
TL;DR: In this article, the stability properties of the flow past an infinitely long circular cylinder are studied in the context of linear theory, where an immersed-boundary technique is used to represent the cylinder surface on a Cartesian mesh.
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On the spatial structure of global modes in wake flow
TL;DR: In this article, a scaling law of the amplitude oscillating with the fundamental frequency corresponding to the maximum of the global mode is found to agree with the Landau model in a range of Reynolds Re numbers larger than in previous studies, and the position of the maximum amplitude of the fundamental modes scales as (Re−Rec)−1/2.
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Numerical simulation of unconfined flow past a triangular cylinder
Arnab Kumar De,Amaresh Dalal +1 more
TL;DR: In this article, a finite volume method, second-order accurate in space and time, employing non-staggered arrangement of the variables with momentum interpolation for the pressure-velocity coupling is developed.
Journal ArticleDOI
The wake of a cylinder performing rotary oscillations
TL;DR: In this paper, the wake of a cylinder performing rotary oscillations around its axis at moderate Reynolds number was studied and it was observed that the structure of the vortex shedding is strongly affected by the forcing parameters.