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  1. Theoretical and Computational Fluid Dynamics
  2. Theoretical and Computational Fluid Dynamics : Volume 25
  3. Theoretical and Computational Fluid Dynamics : Volume 25, Issue 1-4, June 2011
  4. On the birth of stall cells on airfoils
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Theoretical and Computational Fluid Dynamics : Volume 31
Theoretical and Computational Fluid Dynamics : Volume 30
Theoretical and Computational Fluid Dynamics : Volume 29
Theoretical and Computational Fluid Dynamics : Volume 28
Theoretical and Computational Fluid Dynamics : Volume 27
Theoretical and Computational Fluid Dynamics : Volume 26
Theoretical and Computational Fluid Dynamics : Volume 25
Theoretical and Computational Fluid Dynamics : Volume 25, Issue 6, December 2011
Theoretical and Computational Fluid Dynamics : Volume 25, Issue 5, October 2011
Theoretical and Computational Fluid Dynamics : Volume 25, Issue 1-4, June 2011
Special issue on global flow instability and control
Signalling problem in absolutely unstable systems
Transient growth mechanisms of low Reynolds number flow over a low-pressure turbine blade
Transient growth and bypass transition in stenotic flow with a physiological waveform
On the downstream development and breakup of systems of trailing-line vortices
Global instabilities in diverging channel flows
Spatially developing secondary instabilities in compressible swept airfoil boundary layers
Hypersonic viscous flow over large roughness elements
On the birth of stall cells on airfoils
Global stability of separated flows: subsonic flow past corners : Global stability of separated flows
Self-sustained global oscillations in a jet in crossflow
Modeling of optimal perturbations in flat plate boundary layer using global modes: benefits and limits
Control of Tollmien–Schlichting instabilities by finite distributed wall actuation
Global modes in a confined impinging jet: application to heat transfer and control
Control of a separated boundary layer: reduced-order modeling using global modes revisited
Closed-loop bluff-body wake stabilization via fluidic excitation
Feedback control of vortex shedding from an inclined flat plate
Reduced-order models for control of fluids using the eigensystem realization algorithm
Applications of the dynamic mode decomposition
Theoretical and Computational Fluid Dynamics : Volume 24
Theoretical and Computational Fluid Dynamics : Volume 23
Theoretical and Computational Fluid Dynamics : Volume 22
Theoretical and Computational Fluid Dynamics : Volume 21
Theoretical and Computational Fluid Dynamics : Volume 20
Theoretical and Computational Fluid Dynamics : Volume 19
Theoretical and Computational Fluid Dynamics : Volume 18
Theoretical and Computational Fluid Dynamics : Volume 17
Theoretical and Computational Fluid Dynamics : Volume 16
Theoretical and Computational Fluid Dynamics : Volume 15
Theoretical and Computational Fluid Dynamics : Volume 14
Theoretical and Computational Fluid Dynamics : Volume 13
Theoretical and Computational Fluid Dynamics : Volume 12
Theoretical and Computational Fluid Dynamics : Volume 11
Theoretical and Computational Fluid Dynamics : Volume 10
Theoretical and Computational Fluid Dynamics : Volume 9

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On the birth of stall cells on airfoils

Content Provider SpringerLink
Author RodrĂ­guez, Daniel Theofilis, Vassilis
Copyright Year 2010
Abstract Critical point theory asserts that two-dimensional topologies are defined as degeneracies and any three-dimensional disturbance of a two-dimensional flow will lead to a new three-dimensional flowfield topology, regardless of the disturbance amplitude. Here, the topology of the composite flowfields reconstructed by linear superposition of the two-dimensional flow around a stalled airfoil and the leading stationary three-dimensional global eigenmode has been studied. In the conditions monitored the two-dimensional flow is steady and laminar and is separated over a fraction of the suction side, while the amplitudes considered in the linear superposition are small enough for the linearization assumption to be valid. The multiple topological bifurcations resulting have been analysed in detail; the surface streamlines generated by the leading stationary global mode of the separated flow have been found to be strongly reminiscent of the characteristic stall cells, observed experimentally on airfoils just beyond stall in both laminar and turbulent flow.
Starting Page 105
Ending Page 117
Page Count 13
File Format PDF
ISSN 09354964
Journal Theoretical and Computational Fluid Dynamics
Volume Number 25
Issue Number 1-4
e-ISSN 14322250
Language English
Publisher Springer-Verlag
Publisher Date 2010-03-25
Publisher Place Berlin, Heidelberg
Access Restriction One Nation One Subscription (ONOS)
Subject Keyword Stall cells Flow topology Global flow instability Engineering Fluid Dynamics Computational Science and Engineering Classical Continuum Physics
Content Type Text
Resource Type Article
Subject Fluid Flow and Transfer Processes Condensed Matter Physics Computational Mechanics
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