Control of flow over a bluff body

H Choi, WP Jeon, J Kim - Annu. Rev. Fluid Mech., 2008 - annualreviews.org
In this review, we present control methods for flow over a bluff body such as a circular
cylinder, a 2D bluff body with a blunt trailing edge, and a sphere. We introduce recent major …

Dynamics and control of global instabilities in open-flows: a linearized approach

D Sipp, O Marquet, P Meliga, A Barbagallo - 2010 - asmedigitalcollection.asme.org
This review article addresses the dynamics and control of low-frequency unsteadiness, as
observed in some aerodynamic applications. It presents a coherent and rigorous linearized …

Bi-stability in the turbulent wake past parallelepiped bodies with various aspect ratios and wall effects

M Grandemange, M Gohlke, O Cadot - Physics of Fluids, 2013 - pubs.aip.org
The turbulent wake past parallelepiped bodies with a rectangular blunt trailing edge of
height H and width W is investigated in wall proximity: various aspect ratios H*= H/W∈[0.51 …

Mechanics of bluff body drag reduction during transient near-wake reversals

Y Haffner, J Borée, A Spohn… - Journal of Fluid …, 2020 - cambridge.org
A combination of passive and active methods is used to manipulate the symmetry of the
turbulent wake of an Ahmed body. Dedicated experiments to study the wake reversals …

Low-dimensional dynamics of a turbulent axisymmetric wake

G Rigas, AR Oxlade, AS Morgans… - Journal of Fluid …, 2014 - cambridge.org
The coherent structures of a turbulent wake generated behind a bluff three-dimensional
axisymmetric body are investigated experimentally at a diameter-based Reynolds number …

Unsteadiness of an axisymmetric separating-reattaching flow: Numerical investigation

S Deck, P Thorigny - Physics of fluids, 2007 - pubs.aip.org
The separated flow over a cylinder elongated by another cylinder of a smaller diameter is
investigated numerically at the high subsonic regime using zonal detached eddy simulation …

Experimental analysis of the effect of local base blowing on three-dimensional wake modes

M Lorite-Díez, JI Jiménez-González… - Journal of Fluid …, 2020 - cambridge.org
Wake modes of a three-dimensional blunt-based body near a wall are investigated at a
Reynolds number states in the horizontal (respectively vertical) direction, while bistable …

Turbulent wake past a three-dimensional blunt body. Part 2. Experimental sensitivity analysis

M Grandemange, M Gohlke, O Cadot - Journal of Fluid Mechanics, 2014 - cambridge.org
The sensitivity of the flow around three-dimensional blunt geometry is investigated
experimentally at Reynolds number. Vertical and horizontal control cylinders are used to …

Numerical simulation of the compressible mixing layer past an axisymmetric trailing edge

F Simon, S Deck, P Guillen, P Sagaut… - Journal of Fluid …, 2007 - cambridge.org
Numerical simulation of a compressible mixing layer past an axisymmetric trailing edge is
carried out for a Reynolds number based on the diameter of the trailing edge approximately …

Multi-scale proper orthogonal decomposition analysis of instabilities in swirled and stratified flames

A Procacci, MM Kamal, MA Mendez, S Hochgreb… - Physics of …, 2022 - pubs.aip.org
This study examines the flow field dynamics of bluff-body stabilized swirling and non-
swirling flames produced from the Cambridge/Sandia Stratified Swirl Burner. This burner …