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On the impact of swirl on the growth of coherent structures
K Oberleithner, CO Paschereit… - Journal of Fluid …, 2014 - cambridge.org
Spatial linear stability analysis is applied to the mean flow of a turbulent swirling jet at swirl
intensities below the onset of vortex breakdown. The aim of this work is to predict the …
intensities below the onset of vortex breakdown. The aim of this work is to predict the …
Three-dimensional laser-Doppler velocimeter measurements in swirling turbulent pipe flow
G Rocklage-Marliani, M Schmidts… - Flow, Turbulence and …, 2003 - Springer
The present work is an experimental study of the evolutioncharacteristics of swirl in the flow
in a pipe at a moderately highReynolds number and over a wide range of swirl numbers …
in a pipe at a moderately highReynolds number and over a wide range of swirl numbers …
Development of boundary conditions for direct numerical simulations of three-dimensional vortex breakdown phenomena in semi-infinite domains
MR Ruith, P Chen, E Meiburg - Computers & Fluids, 2004 - Elsevier
The suitability of various open boundary conditions is evaluated for direct numerical
simulations of three-dimensional, incompressible, spatially and temporally evolving, swirling …
simulations of three-dimensional, incompressible, spatially and temporally evolving, swirling …
An experimental study of the near-field mixing characteristics of a swirling jet
R Örlü, PH Alfredsson - Flow, Turbulence and Combustion, 2008 - Springer
The present experimental investigation is devoted to the mixing characteristics of a passive
scalar in the near-field region of a moderately swirling jet issuing from a fully developed …
scalar in the near-field region of a moderately swirling jet issuing from a fully developed …
Dynamics and mixing in jet/vortex interactions
This study describes large eddy simulations of the interaction between an exhaust jet and a
trailing vortex, in the near-field of an aircraft wake. Two cases are analyzed: in the first one …
trailing vortex, in the near-field of an aircraft wake. Two cases are analyzed: in the first one …
A study on axially rotating pipe and swirling jet flows
L Facciolo - 2006 - diva-portal.org
The present study is an experimental and numerical investigation on rotating flows. A
special facility has been built in order to produce a turbulent swirling jet generated by a fully …
special facility has been built in order to produce a turbulent swirling jet generated by a fully …
Vortex ring with swirl: A numerical study
In this paper, we use a lattice Boltzmann method to study the effect of swirl on the dynamics
of an isolated three-dimensional vortex ring in a viscous incompressible fluid. We focus on a …
of an isolated three-dimensional vortex ring in a viscous incompressible fluid. We focus on a …
Nonlinear evolution of a swirling jet instability
I Delbende, M Rossi - Physics of Fluids, 2005 - pubs.aip.org
The nonlinear evolution of the three-dimensional instability of a viscous unsteady swirling
jet, namely, the Batchelor vortex, is addressed. Two types of initial perturbations are …
jet, namely, the Batchelor vortex, is addressed. Two types of initial perturbations are …
Swirling instability of viscous liquid jets with axial shear effect in gas surroundings
Linear instability analysis of a viscous swirling liquid jet surrounded by ambient gas is
carried out by considering the significant influence of axial shear effect. The jet azimuthal …
carried out by considering the significant influence of axial shear effect. The jet azimuthal …
[PDF][PDF] On turbulent swirling jets: Vortex breakdown, coherent structures, and their control
K Oberleithner - 2012 - researchgate.net
This thesis provides an experimental and theoretical investigation of turbulent swirling jets
with the emphasis on the formation of large-scale coherent flow structures. The involved …
with the emphasis on the formation of large-scale coherent flow structures. The involved …