Salient three-dimensional features of the turbulent wake of a simplified square-back vehicle

G Pavia, MA Passmore, M Varney… - Journal of Fluid …, 2020 - cambridge.org
In this paper, the unsteady wake of a simplified square-back vehicle, with and without
wheels, is investigated using large-scale tomographic particle image velocimetry, at a …

Supercritical transition to turbulence in an inertially driven von Kármán closed flow

F Ravelet, A Chiffaudel, F Daviaud - Journal of Fluid Mechanics, 2008 - cambridge.org
We study the transition from laminar flow to fully developed turbulence for an inertially driven
von Kármán flow between two counter-rotating large impellers fitted with curved blades over …

Forcing symmetry exchanges and flow reversals in turbulent wakes

D Barros, J Borée, O Cadot, A Spohn… - Journal of Fluid …, 2017 - cambridge.org
Turbulent wakes past bluff bodies commonly present asymmetric flow states reminiscent of
bifurcations in the laminar regime. Understanding the sensitivity of these states to flow …

Diffusive dynamics and stochastic models of turbulent axisymmetric wakes

G Rigas, AS Morgans, RD Brackston… - Journal of Fluid …, 2015 - cambridge.org
A modelling methodology to reproduce the experimental measurements of a turbulent flow
in the presence of symmetry is presented. The flow is a three-dimensional wake generated …

The von Kármán sodium experiment: turbulent dynamical dynamos

R Monchaux, M Berhanu, S Aumaître, A Chiffaudel… - Physics of …, 2009 - pubs.aip.org
The von Kármán Sodium (VKS) experiment studies dynamo action in the flow generated
inside a cylinder filled with liquid sodium by the rotation of coaxial impellers (the von Kármán …

Imperfect supercritical bifurcation in a three-dimensional turbulent wake

O Cadot, A Evrard, L Pastur - Physical Review E, 2015 - APS
The turbulent wake of a square-back body exhibits a strong bimodal behavior. The wake
randomly undergoes symmetry-breaking reversals between two mirror asymmetric steady …

Connecting flow structures and heat flux in turbulent Rayleigh-Bénard convection

EP van der Poel, RJAM Stevens, D Lohse - Physical Review E—Statistical …, 2011 - APS
The aspect ratio (Γ) dependence of the heat transfer (Nusselt number Nu in dimensionless
form) in turbulent (two-dimensional) Rayleigh-Bénard convection is numerically studied in …

Creation of an isolated turbulent blob fed by vortex rings

T Matsuzawa, NP Mitchell, S Perrard, WTM Irvine - Nature Physics, 2023 - nature.com
Turbulence is hard to control. Many experimental methods have been developed to
generate this elusive state of matter, leading to fundamental insights into its statistical and …

Dynamics of inertial particles in a turbulent von Kármán flow

R Volk, E Calzavarini, E Leveque… - Journal of Fluid …, 2011 - cambridge.org
We study the dynamics of neutrally buoyant particles with diameters varying in the range [1,
45] in Kolmogorov scale units (η) and Reynolds numbers based on Taylor scale (Reλ) …

Coherent motions in a turbulent wake of an axisymmetric bluff body

F Zhang, YT Peet - journal of fluid mechanics, 2023 - cambridge.org
Coherent motions in a turbulent wake of an axisymmetric bluff body Page 1 J. Fluid Mech. (2023),
vol. 962, A19, doi:10.1017/jfm.2023.231 Coherent motions in a turbulent wake of an …