Seventh IUTAM Symposium on Laminar-Turbulent Transition: Proceedings of the Seventh IUTAM Symposium on Laminar-Turbulent Transition, Stockholm, Sweden, 2009

Front Matter....Pages 1-23
Front Matter....Pages 1-1
A Gradient-based Optimization Method for Natural Laminar Flow Design....Pages 3-10
A Thermodynamic Lower Bound on Transition-Triggering Disturbances....Pages 11-18
Hypersonic boundary layer transition and control....Pages 19-26
Instabilities of Miscible Interfaces....Pages 27-34
Large-eddy simulations of relaminarization due to freestream acceleration....Pages 35-42
Reduced-order models for flow control: balanced models and Koopman modes....Pages 43-50
The description of fluid behavior by coherent structures....Pages 51-58
Instability of uniform turbulent plane Couette flow: spectra, probability distribution functions and K – Ω closure model....Pages 59-66
Front Matter....Pages 68-68
Sensitivity to base-flow variation of a streamwise corner flow....Pages 69-74
Transition Control Testing in the Supersonic S2MA Wind Tunnel (SUPERTRAC project)....Pages 75-80
Breakdown of Low-Speed Streaks under High-Intensity Background Turbulence....Pages 81-86
Numerical Study on Transition of a Channel Flow with Longitudinal Wall-oscillation....Pages 87-92
Direct Numerical Simulation of the Mixing Layer past Serrated Nozzle Ends....Pages 93-98
Receptivity of a supersonic boundary layer to shock-wave oscillations....Pages 99-104
Roughness receptivity studies in a 3-D boundary layer – Flight tests and computations....Pages 105-110
DNS investigations of steady receptivity mechanisms on a swept cylinder....Pages 111-116
Experimental Study of the Incipient Spot Breakdown Controlled by Riblets....Pages 117-122
Control of Stationary Cross-flow Modes Using Patterned Roughness at Mach 3.5....Pages 123-128
Secondary optimal growth and subcritical transition in the plane Poiseuille flow....Pages 129-134
Disturbance evolution in rotating-disk boundary layers: competition between absolute instability and global stability....Pages 135-140
Front Matter....Pages 68-68
Instabilities due a vortex at a density interface: gravitational and centrifugal effects....Pages 141-146
Wave Packets of Controlled Velocity Perturbations at Laminar Flow Separation....Pages 147-152
Linear Stability Analysis for Manipulated Boundary-Layer Flows using Plasma Actuators....Pages 153-158
Stripy patterns in low- Re turbulent plane Couette flow....Pages 159-164
Characterization of the three-dimensional instability in a lid-driven cavity by an adjoint based analysis....Pages 165-170
Bi-global crossplane stability analysis of high-speed boundary-layer flows with discrete roughness....Pages 171-176
Time-resolved PIV investigations on the laminar-turbulent transition over laminar separation bubbles....Pages 177-182
Control of transient growth induced boundary layer transition using plasma actuators....Pages 183-188
Laminar Flow Control by Suction at Mach 2....Pages 189-194
Decay of turbulent bursting in enclosed flows....Pages 195-200
Local and Global Stability of Airfoil Flows at Low Reynolds Number....Pages 201-206
Numerical simulation of riblet controlled oblique transition....Pages 207-212
Transition Movement in the Wake of Protruding and Recessed Three-Dimensional Surface Irregularities....Pages 213-218
Plasma Assisted Aerodynamics for Transition Delay....Pages 219-224
Experimental study on stability of the laminar and turbulent plane jets....Pages 225-230
Evolution Of Traveling Crossflow Modes Over A Swept Flat Plate....Pages 231-236
Computational Analysis for Roughness-Based Transition Control....Pages 237-242
Statistics of turbulent-to-laminar transition in plane Couette flow....Pages 243-246
Spectra of Swirling Flow....Pages 247-252
Localized edge states for the transition to turbulence in shear flows....Pages 253-258
Front Matter....Pages 68-68
Active steady control of vortex shedding: an adjoint-based sensitivity approach....Pages 259-264
Feedback control of transient energy growth in subcritical plane Poiseuille flow....Pages 265-270
Linear and non-linear disturbance evolution in a compressible boundary-layer with localized roughness....Pages 271-276
Experimental Study of Boundary Layer Transition Subjected to Weak Free Stream Turbulence....Pages 277-282
Open-loop control of compressible afterbody flows using adjoint methods....Pages 283-288
Direct Numerical Simulation of a Swept-Wing Boundary Layer with an Array of Discrete Roughness Elements....Pages 289-294
Wave packet pseudomodes upstream of a swept cylinder....Pages 295-300
Bypass Transition prediction using a model based on transient growth theory....Pages 301-306
Flow in a Slowly Divergent Pipe Section....Pages 307-312
In-flight experiments on active TS-wave control on a 2D-laminar wing glove....Pages 313-318
Global nonlinear dynamics of thin aerofoil wakes....Pages 319-324
Riccati-less optimal control of bluff-body wakes....Pages 325-330
Asymptotic theory of the pre-transitional laminar streaks and comparison with experiments....Pages 331-336
Roughness-induced transition of compressible laminar boundary layers....Pages 337-342
On receptivity and modal linear instability of laminar separation bubbles at all speeds....Pages 343-348
Hypersonic instability waves measured on a circular cone at M=12 using fast-response surface heat-flux and pressure gauges....Pages 349-354
Interaction of noise disturbances and streamwise streaks....Pages 355-360
Experimental study on the use of the wake instability as a passive control in coaxial jet flows....Pages 361-366
Numerical and Experimental Investigations of Relaminarizing Plane Channel Flow....Pages 367-372
Linear control of 3D disturbances on a flat-plate....Pages 373-378
Front Matter....Pages 68-68
Experimental study of stability of supersonic boundary layer on swept wing....Pages 379-384
Comparison of Direct Numerical Simulation with the Theory of Receptivity in a Supersonic Boundary Layer....Pages 385-390
Instability of high Mach number flows in the presence of high-temperature gas effects....Pages 391-396
Spatially localised growth within global instabilities of flexible channel flows....Pages 397-402
Global stability of a plane liquid jet surrounded by gas....Pages 403-408
Instabilities of flow in a corrugated pipe....Pages 409-414
The Late Nonlinear Stage of Oblique Breakdown to Turbulence in a Supersonic Boundary Layer....Pages 415-420
Turbulence stripe in transitional channel flow with/without system rotation....Pages 421-426
Direct Numerical Simulation and Theoretical Analysis of Perturbations in Hypersonic Boundary Layers....Pages 427-432
Flow Transition in Free Liquid Film Induced by Thermocapillary Effect....Pages 433-438
Boundary layer transition by interaction of streaks and Tollmien–Schlichting waves....Pages 439-444
Numerical Investigation of Subharmonic Resonance Triads in a Mach 3 Boundary Layer....Pages 445-450
Front Matter....Pages 452-452
Transient Growth on the Homogenous Mixing Layer....Pages 453-456
Closed-loop control of cavity flow using a reduced-order model based on balanced truncation....Pages 457-460
On the asymptotic solution of the flow around a circular cylinder....Pages 461-464
Investigations of Suction in a Transitional Flat-Plate Boundary Layer....Pages 465-468
Global three-dimensional optimal perturbations in a Blasius boundary layer....Pages 469-472
Quantifying sub-optimal transient growth using biorthogonal decomposition....Pages 473-476
Model reduction using Balanced Proper Orthogonal Decomposition with frequential snapshots....Pages 477-480
Control of a trapped vortex in a thick airfoil by steady/unsteady mass flow suction....Pages 481-484
Front Matter....Pages 452-452
Receptivity of compressible boundary layer to kinetic fluctuations....Pages 485-488
Effect of transport modeling on hypersonic cooled wall boundary layer stability....Pages 489-492
Modeling Supersonic and Hypersonic Flow Transition over Three-Dimensional Bodies....Pages 493-496
Amplitude threshold in the wake transition of an oscillating circular cylinder....Pages 497-500
Certain Aspect of Instability of Flow in a Channel with Expansion/Contraction....Pages 501-504
Some properties of boundary layer under the joint effect of external flow turbulence and surface roughness....Pages 505-508
Wave forerunners of localized structures at the boundary layer....Pages 509-512
Experiments on the wave train excitation and wave interaction in spanwise modulated supersonic boundary layer....Pages 513-516
Laminar-Turbulent Transition and Boundary Layer Separation on wavy surface wing....Pages 517-519
Investigation of Thermal Nonequilibrium on Hypersonic Boundary-Layer Transition by DNS....Pages 521-524
Global sustained perturbations in a backward-facing step flow....Pages 525-528
Large Reynolds number streak description using RNS....Pages 529-532
Optimal disturbances with iterative methods....Pages 533-536
Connection between full-lifetime and breakdown of puffs in transitional pipe flows....Pages 537-540
Effect of oblique waves on jet turbulence....Pages 541-544
The effect of a single three-dimensional roughness element on the boundary layer transition....Pages 545-548
Experimental study of resonant interactions of modulated waves in a non self-similar boundary layer....Pages 549-552
High Reynolds Number Transition Experiments in ETW (TELFONA project)....Pages 553-556
Entropy generation rate in turbulent spots in a boundary layer subject to freestream turbulence....Pages 557-560
The Effect of a Particle travelling through a Laminar Boundary Layer on Transition....Pages 561-564
Front Matter....Pages 452-452
Flow past a plate with elliptic leading edge: layer response to free-stream vorticity....Pages 565-568
Fluctuation Measurements in the Turbulent Boundary Layer of a Supersonic Flow....Pages 569-572
Experimental characterization of the transition region in a rotating-disk boundary layer....Pages 573-576
Nonlinear Interaction Between Wavepackets in Plane Poiseuille Flow....Pages 577-580
Effects of Passive Porous Walls on Hypersonic Boundary Layers....Pages 581-584
Global Instabilities in Wall Jets....Pages 585-588
Spatial Optimal Disturbances in Three-Dimensional Boundary Layers....Pages 589-592
Influence of turbulence scale and shape of leading edge on laminar-turbulent transition induced by free-stream turbulence....Pages 593-596
Bifurcation characteristics of the channel flow on a rotating system undergoing transition under the influence of the Coriolis force....Pages 597-600
Linear Stability Investigations of Flow Over Yawed Anisotropic Compliant Walls....Pages 601-604
Back Matter....Pages 1-4