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Seventh IUTAM Symposium on Laminar-Turbulent Transition
Proceedings of the Seventh IUTAM Symposium on Laminar-Turbulent Transition, Stockholm, Sweden, 2009
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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.
numerical simulations of fluid flow
transition to turbulence
Preface; Part I Invited Presentations; A Gradient-based Optimization Method for Natural Laminar Flow Design, by A. Hanifi, O. Amoignon, J. O. Pralits, M. Chevalier; A Thermodynamic Lower Bound on Transition-Triggering Disturbances, by Paolo Luchini; Hypersonic boundary layer transition and control, by A. A. Maslov, T. Poplavskaya, D. A. Bountin; Instabilities of Miscible Interfaces, by Eckart Meiburg; Large-eddy simulations of relaminarization due to freestream acceleration, by Ugo Piomelli, Carlo Scalo; Reduced-order models for flow control: balanced models and Koopman modes, by Clarence W. Rowley, Igor Mezik, Shervin Bagheri, Philipp Schlatter, Dan S. Henningson; The description of fluid behavior by coherent structures, by Peter J. Schmid; Instability of uniform turbulent plane Couette flow: spectra, probability distribution functions and K - O closure model, by Laurette S. Tuckerman, Dwight Barkley, Olivier Dauchot; Part II Oral Presentations; Sensitivity to base-flow variation of a streamwise corner flow, by Frédéric Alizard, Jean-Christophe Robinet, Ulrich Rist; Transition Control Testing in the Supersonic S2MA Wind Tunnel (SUPERTRAC project), by J.-P. Archambaud, D. Amal, J.-L. Godard, S. Hein, J. Krier, R. S. Donelli, A.Hanifi; Breakdown of Low-Speed Streaks under High-Intensity Background Turbulence, by Masahito Asai, Motosumi Yamanouchi, Ayumu Inasawa, Yasufumi Konishi; Numerical Study on Transition of a Channel Flow with Longitudinal Wall-oscillation, by Takashi Atobe, Kiyoshi Yamamoto; Direct Numerical Simulation of the Mixing Layer past Serrated Nozzle Ends, by Andreas Babucke, Markus J. Kloker, Ulrich Rist; Receptivity of a supersonic boundary layer to shock-wave oscillations, by Andreas Babucke, Ulrich Rist; Roughness receptivity studies in a 3-D boundary layer - Flight tests and computations, by Andrew L. Carpenter, William S. Saric, Helen L. Reed; DNS investigations of steady receptivity mechanisms on a swept cylinder, by G. Casalis, E. Piot;Experimental Study of the Incipient Spot Breakdown Controlled by Riblets, by V. Chemoray, G. R. Grek, V. V. Kozlov, Y. A. Litvinenko; Control of Stationary Cross-flow Modes Using Patterned Roughness at Mach3.5 , by Thomas Corke, Eric Matlis, Chan-Yong Schuele, Stephen Wilkinson, Lewis Owens, P. Balakumar; Secondary optimal growth and subcritical transition in the plane Poiseuille flow, by Carlo Cossu, Mattias Chevalier, Dan S. Henningson; Disturbance evolution in rotating-disk boundary layers: competition between absolute instability and global stability, by Christopher Davies, Christian Thomas; Instabilities due a vortex at a density interface: gravitational and centrifugal effects, by Harish N. Dixit, Rama Govindarajan; Wave Packets of Controlled Velocity Perturbations at Laminar Flow Separation, by Alexander Dovgal, Alexander Sorokin; Linear Stability Analysis for Manipulated Boundary-Layer Flows using Plasma Actuators, by A. Duchmann, A. Reeh, R. Quadros, J. Kriegseis, C. Tropea; Stripy patterns in low-Re turbulent plane Couette flow, by Yohann Duguet, Philipp Schlatter, Dan S. Henningson; Characterization of the three-dimensional instability in a lid-driven cavity by an adjoint based analysis, by Flavio Giannetti, Paolo Luchini, Luca Marino; Bi-global crossplane stability analysis of high-speed boundary-layer flows with discrete roughness, by Gordon Groskopf, Markus J. Kloker, Olaf Marxen; Time-resolved PIV investigations on the laminar-turbulent transition over laminar separation bubbles, by Rainer Hain, Christian J. Kiihler and Rolf Radespiel; Control of transient growth induced boundary layer transition using plasmaactuators, by Ronald E. Hanson, Philippe Lavoie, Ahmed M. Naguib, Jonathan F. Morrison; Laminar Flow Control by Suction at Mach 2, by S. Hein, E. Schülein, A. Hanifi, J. Sousa, D. Amal; Decay of turbulent bursting in enclosed flows, by Kerstin Hochstrate, Jan Abshagen, Marc Avila, Christian Will, Gerd Pfister; Local and Global Stability of
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