Seventh IUTAM Symposium on Laminar-Turbulent Transition

1. Front Matter

   Pages 1-23

   PDF

2. Invited Presentations

   1. Front Matter

      Pages 1-1

      PDF

   2. A Gradient-based Optimization Method for Natural Laminar Flow Design

      • A. Hanifi, O. Amoignon, J. O. Pralits, M. Chevalier

      Pages 3-10

   3. A Thermodynamic Lower Bound on Transition-Triggering Disturbances

      • Paolo Luchini

      Pages 11-18

   4. Hypersonic boundary layer transition and control

      • A. A. Maslov, T. Poplavskaya, D. A. Bountin

      Pages 19-26

   5. Instabilities of Miscible Interfaces

      • Eckart Meiburg

      Pages 27-34

   6. Large-eddy simulations of relaminarization due to freestream acceleration

      • Ugo Piomelli, Carlo Scalo

      Pages 35-42

   7. Reduced-order models for flow control: balanced models and Koopman modes

      • Clarence W. Rowley, Igor Mezić, Shervin Bagheri, Philipp Schlatter, Dan S. Henningson

      Pages 43-50

   8. The description of fluid behavior by coherent structures

      • Peter J. Schmid

      Pages 51-58

   9. Instability of uniform turbulent plane Couette flow: spectra, probability distribution functions and K – Ω closure model

      • Laurette S. Tuckerman, Dwight Barkley, Olivier Dauchot

      Pages 59-66

3. Oral Presentations

   1. Front Matter

      Pages 68-68

      PDF

   2. Sensitivity to base-flow variation of a streamwise corner flow

      • Frédéric Alizard, Jean-Christophe Robinet, Ulrich Rist

      Pages 69-74

   3. Transition Control Testing in the Supersonic S2MA Wind Tunnel (SUPERTRAC project)

      • J.-P. Archambaud, D. Arnal, J.-L. Godard, S. Hein, J. Krier, R. S. Donelli et al.

      Pages 75-80

   4. Breakdown of Low-Speed Streaks under High-Intensity Background Turbulence

      • Masahito Asai, Motosumi Yamanouchi, Ayumu Inasawa, Yasufumi Konishi

      Pages 81-86

   5. Numerical Study on Transition of a Channel Flow with Longitudinal Wall-oscillation

      • Takashi Atobe, Kiyoshi Yamamoto

      Pages 87-92

   6. Direct Numerical Simulation of the Mixing Layer past Serrated Nozzle Ends

      • Andreas Babucke, Markus J. Kloker, Ulrich Rist

      Pages 93-98

   7. Receptivity of a supersonic boundary layer to shock-wave oscillations

      • Andreas Babucke, Ulrich Rist

      Pages 99-104

   8. Roughness receptivity studies in a 3-D boundary layer – Flight tests and computations

      • Andrew L. Carpenter, William S. Saric, Helen L. Reed

      Pages 105-110

   9. DNS investigations of steady receptivity mechanisms on a swept cylinder

      • G. Casalis, E. Piot

      Pages 111-116

   10. Experimental Study of the Incipient Spot Breakdown Controlled by Riblets

       • V. Chernoray, G. R. Grek, V. V. Kozlov, Y. A. Litvinenko

       Pages 117-122

The origins of turbulent ?ow and the transition from laminar to turbulent ?ow are the most important unsolved problems of ?uid mechanics and aerodynamics. - sides being a fundamental question of ?uid mechanics, there are numerous app- cations relying on information regarding transition location and the details of the subsequent turbulent ?ow. For example, the control of transition to turbulence is - pecially important in (1) skin-friction reduction of energy ef?cient aircraft, (2) the performance of heat exchangers and diffusers, (3) propulsion requirements for - personic aircraft, and (4) separation control. While considerable progress has been made in the science of laminar to turbulent transition over the last 30 years, the c- tinuing increase in computer power as well as new theoretical developments are now revolutionizing the area. It is now starting to be possible to move from simple 1D eigenvalue problems in canonical ?ows to global modes in complex ?ows, all - companied by accurate large-scale direct numerical simulations (DNS). Here, novel experimental techniques such as modern particle image velocimetry (PIV) also have an important role. Theoretically the in?uence of non-normality on the stability and transition is gaining importance, in particular for complex ?ows. At the same time the enigma of transition in the oldest ?ow investigated, Reynolds pipe ?ow tran- tion experiment, is regaining attention. Ideas from dynamical systems together with DNS and experiments are here giving us new insights.

• IUTAM
• Riblet
• experimental techniques
• flow control
• hydrodynamic stability
• numerical simulations of fluid flow
• transition to turbulence
• fluid- and aerodynamics

• Dept. Mechanics, KTH, Stockholm, Sweden

  Philipp Schlatter, Dan S. Henningson

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