Advances in Turbulence XII: Proceedings of the 12th EUROMECH European Turbulence Conference, September 7-10, 2009, Marburg, Germany

Front Matter....Pages 1-27
Front Matter....Pages 1-1
Lagrangian modeling and properties of particles with inertia....Pages 3-10
Effect of Faxén forces on acceleration statistics of material particles in turbulent flow....Pages 11-14
Lagrangian analysis of turbulent convection....Pages 15-18
Linear and angular dynamics of an inertial particle in turbulence....Pages 19-22
Collision rate between heavy particles in a model turbulent flow....Pages 23-26
From cloud condensation nuclei to cloud droplets: a turbulent model....Pages 27-30
Lagrangian statistics of inertial particles in turbulent flow....Pages 31-34
Lagrangian statistics of two–dimensional turbulence in a square container....Pages 35-38
Measurement of Lagrangian Particle Trajectories by Digital in-line Holography....Pages 39-42
3-D Particle Tracking Velocimetry (PTV) in gas flows using coloured tracer particles....Pages 43-46
Two-particle dispersion in 2D inverse cascade turbulence and its telegraph equation model....Pages 47-50
Numerical simulations of particle dispersion in stratified flows....Pages 51-55
Front Matter....Pages 57-57
Experimental study of the von Kármán flow from Re = 10 2 to 10 6 : spontaneous symmetry breaking and turbulent bifurcations....Pages 59-62
Flow reversals in a vertical channel....Pages 63-65
Linear Instability of Streamwise Corner Flow....Pages 67-70
DNS of turbulent plane Couette flow with emphasis on turbulent stripe....Pages 71-74
Geometry of state space in plane Couette flow....Pages 75-78
Linear and nonlinear instabilities of sliding Couette flow....Pages 79-82
Localization in plane Couette edge dynamics....Pages 83-84
Nonlinear optimal perturbations in plane Couette flow....Pages 85-88
Front Matter....Pages 57-57
Order parameter in laminar-turbulent patterns....Pages 89-91
Pattern formation in low Reynolds number plane Couette flow....Pages 93-96
Quasi-stationary and chaotic convection in low rotating spherical shells....Pages 97-101
Linear stability of 2D rough channels....Pages 103-106
Transient turbulent bursting in enclosed flows....Pages 107-110
On New Localized Vortex Solutions in the Couette-Ekman Layer....Pages 111-114
Shear instabilities in Taylor-Couette flow....Pages 115-118
Particle Tracking Velocimetry in Transitional Plane Couette Flow....Pages 119-122
Experimental study of coherent structures in turbulent pipe flow....Pages 123-124
Forced localized turbulence in pipe flows....Pages 125-128
From localized to expanding turbulence....Pages 129-130
Influence of test-rigs on the laminar-to-turbulent transition of pipe flows....Pages 131-134
Interaction of turbulent spots in pipe flow....Pages 135-136
Large-scale transitional dynamics in pipe flow....Pages 137-140
Nonlinear coherent structures in a square duct....Pages 141-144
Quantitative measurement of the life time of turbulence in pipe flow....Pages 145-148
Experimental investigation of turbulent patch evolution in spatially steady boundary layers....Pages 149-150
Interaction of noise disturbances and streamwise streaks....Pages 151-154
Linear generation of multiple time scales by 3D unstable perturbations....Pages 155-158
Convection at very high Rayleigh number: signature of transition from a micro-thermometer inside the flow....Pages 159-162
Front Matter....Pages 57-57
Estimating local instabilities for irregular flows in the differentially heated rotating annulus....Pages 163-166
Search for the “ultimate state” in turbulent Rayleigh-Bénard convection....Pages 167-168
Rayleigh–Taylor instability in two dimensions and phase-field method....Pages 169-172
Split energy cascade in quasi-2D turbulence....Pages 173-175
Stabililty and laminarisation of turbulent rotating channel flow....Pages 177-178
The vortical flow pattern exhibited by the channel flow on a rotating system just past transition under the influence of the Coriolis force....Pages 179-182
Transient evolution and high stratification scaling in horizontal mixing layers....Pages 183-186
Front Matter....Pages 187-187
Toward cost-effective Control of Wall Turbulence for Skin Friction Drag Reduction....Pages 189-200
Active control of turbulent boundary layer using an array of piezo-ceramic actuators....Pages 201-204
Flat plate turbulent boundary-layer control using vertical LEBUs....Pages 205-208
Estimation of the spanwise wall shear stress based on upstream information for wall turbulence control....Pages 209-212
Interactions between vortex generators and a flat plate boundary layer. Application to the control of separated flows.....Pages 213-216
Modulated global mode of a controlled wake....Pages 217-220
Swirl effects in turbulent pipe flow....Pages 221-224
Control of an axisymmetric turbulent wake by a pulsed jet....Pages 225-228
Direct Numerical Simulations of turbulent mixed convection in enclosures with heated obstacles....Pages 229-232
On Drag Reduction in Turbulent Channel Flow over Superhydrophobic Surfaces....Pages 233-236
Response of Periodically Modulated Turbulence....Pages 237-239
Turbulent drag reduction by feedback: a Wiener-filtering approach....Pages 241-246
Front Matter....Pages 247-247
A driving mechanism of turbulent puff in pipe flow....Pages 249-252
Front Matter....Pages 247-247
Wavelet tools to study vortex bursting and turbulence production....Pages 253-256
The minimum-enstrophy principle for decaying 2D turbulence in circular domains....Pages 257-260
Direct numerical simulation of a turbulent vortex ring....Pages 261-264
Reconnection of vortex bundles....Pages 265-268
Turbulent energy cascade caused by vortex stretching....Pages 269-272
Instabilities and transient growth of trailing vortices in stratified fluid....Pages 273-276
Implementation of Vortex Stretching into the Two-Dimensional Navier-Stokes Equations via Arbitrary External Straining....Pages 277-280
Turbulent cascade of a quantum fluid at finite temperature....Pages 281-284
Visualization of quantum turbulence in 3 He-B by thermal excitations....Pages 285-288
The 3D structure of a dipole in a shallow two-layer fluid....Pages 289-292
The 3D character of decaying turbulence in a shallow fluid layer....Pages 293-296
Vortex dynamics in a Karman street behind a heated cylinder: defects and potentialities of acoustic diagnostics....Pages 297-300
Asymmetric vortex shedding in the turbulent wake of a flat plate in a rotating fluid....Pages 301-304
Stability of steady vortices and new equilibrium flows from “Imperfect-Velocity-Impulse” diagrams....Pages 305-308
The effect of Freestream Turbulence on Far Axisymmetric Wakes....Pages 309-312
Application of the deterministic turbulence method to study of LEBU-device mechanism....Pages 313-316
The role of the intense vorticity structures in the turbulent structure of the jet edge....Pages 317-319
Large Scale Dynamics of a Jet in a Counter Flow....Pages 321-324
Dynamics of vortex filaments in turbulent flows and their impact on particle dispersion....Pages 325-328
The effect of coherent structures on the secondary flow in a square duct....Pages 329-332
Front Matter....Pages 333-333
How to Discriminate Between Light and Heavy Particles in Turbulence....Pages 335-338
Anisotropic clustering and particles velocity statistics in shear turbulence....Pages 339-342
Direct Numerical Simulation of inertial particle accelerations in near-wall turbulence: effect of gravity....Pages 343-346
Simulating Fibre Suspensions: Lagrangian versus Statistical Approach....Pages 347-350
Inertial particles in a turbulent pipe flow: spatial evolution....Pages 351-354
Heat transfer mechanisms in bubbly Rayleigh-Bénard convection....Pages 355-357
Scaling of polymer drag reduction with polymer and flow parameters in turbulent channel flow....Pages 359-362
DNS study on “diameter effect” of drag reduction in viscoelastic-fluid flow....Pages 363-366
Modifications of the turbulent structure in a bubbly boundary layer....Pages 367-370
Budgets of polymer free energy in homogeneous turbulence....Pages 371-374
Shear-induced self-diffusion in a Couette flow of a dilute suspension....Pages 375-378
Front Matter....Pages 379-379
Turbulent flow over rough walls....Pages 381-388
Top-down and bottom-up eddy motion in wall bounded turbulence....Pages 389-392
A study of turbulent Poiseuille-Ekman flow at different rotation rates using DNS....Pages 393-396
Experimental study of forced stratified turbulence....Pages 397-400
DNS of the turbulent cloud-top mixing layer....Pages 401-404
Modelling and Simulation of Momentum and Heat Transfer in the Atmospheric Boundary Layer over Rough Surface: Study with Improved Turbulence Model....Pages 405-408
Wind Direction Effects on Urban Like Roughness: an LES Study....Pages 409-412
Front Matter....Pages 413-413
Anisotropy in turbulent rotating convection....Pages 415-418
Nonlocal interactions and condensation in forced rotating turbulence....Pages 419-422
Front Matter....Pages 413-413
Structural Features of Rotating Sheared Turbulence....Pages 423-426
Structure functions and energy transfers in a decaying rotating turbulence experiment....Pages 427-430
Table-top rotating turbulence: an experimental insight through particle tracking....Pages 431-434
On the structure of rapidly-rotating, decaying turbulence....Pages 435-438
Large-eddy simulations of gravity current flows past submerged cylinders....Pages 439-442
Large scale quasi-2D structures and the problem of nonlinear bottom friction....Pages 443-446
Double-period oscillation of passive scalar flux in stratified turbulence....Pages 447-448
Energy spectra of stably stratified turbulence....Pages 449-452
The wind-driven turbulent oscillating channel flow subjected to a stable stratification....Pages 453-456
Numerical studies of turbulence in breaking internal waves....Pages 457-460
Vortex self-similarity and the evolution of unforced inviscid two-dimensional turbulence....Pages 461-464
Large Eddy Simulation of compressible magnetohydrodynamic turbulence in the local interstellar medium....Pages 465-468
Front Matter....Pages 469-469
Experimental Studies of Turbulent Rayleigh-Bénard Convection....Pages 471-478
Various flow amplitudes in 2D non-Oberbeck-Boussinesq Rayleigh-Bénard convection in water....Pages 479-482
A comparison of turbulent thermal convection between conditions of constant temperature and constant heat flux boundaries....Pages 483-483
Diffusion of heavy particles in turbulent flows....Pages 485-488
Quantification of heavy particle segregation in turbulent flows: a Lagrangian approach....Pages 489-492
The dispersion of lines written in a turbulent jet flow....Pages 493-495
PDF modeling of vapour micromixing in turbulent evaporating sprays....Pages 497-499
Forces on light particles in stratified turbulence....Pages 501-504
Front Matter....Pages 469-469
Renormalized transport of inertial particles....Pages 505-508
Turbulence modification in the vicinity of a solid particle....Pages 509-512
Particle Transport in Turbulent Wakes Behind Spherical Caps....Pages 513-516
Turbulent heat transfer and large-scale flow in convection cells with aspect ratio Γ > 1....Pages 517-520
Shot noise of thermal plumes : Evidence of a boundary layer instability consistent with the onset of Kraichnan’s Regime of convection....Pages 521-524
Scalar mixing in turbulent confined flow....Pages 525-528
Prandtl-, Rayleigh-, and Rossby-number dependence of heat transport in turbulent Rotating Rayleigh-Bénard convection....Pages 529-532
Oscillations of Large-Scale Structures in turbulent Mixed Convection in a rectangular enclosure....Pages 533-536
Interaction between slope flows and an urban heat island....Pages 537-540
Origin of the small-scale anisotropy of the passive scalar fluctuations....Pages 541-544
Mixing asymmetry in variable density turbulence....Pages 545-548
Turbulent transport close to a wall....Pages 549-552
Persistence of inhomogeneity of the turbulence generated by the static grid structure....Pages 553-556
On the energy decay of grid generated turbulence....Pages 557-560
Turbulent Entrainment in Jets: The role of Kinetic Energy....Pages 561-564
Fast and slow changes of the length of gradient trajectories in homogeneous shear turbulence....Pages 565-569
Front Matter....Pages 571-571
Coherent streaky structures and optimal perturbations of turbulent boundary layers....Pages 573-576
Time-mean description of turbulent bluff-body separation in the high-Reynolds-number limit....Pages 577-580
Isotropic Free-stream Turbulence Promotes Anisotropy in a Turbulent Boundary Layer....Pages 581-584
Travelling waves in a straight square duct....Pages 585-588
Front Matter....Pages 571-571
Thermal boundary layers in turbulent Rayleigh-Bénard convection....Pages 589-592
DNS of turbulent transport of scalar concentration in various thermally stratified boundary layers....Pages 593-596
Wall turbulence without walls....Pages 597-600
Turbulent flow and heat transfer in eccentric annulus....Pages 601-604
On imperfect hot-wire resolution issues and their effect on mean quantities....Pages 605-608
The diagnostic plot - a new way to appraise turbulent boundary-layer data....Pages 609-612
DHMPIV and Tomo-PIV measurements of three-dimensional structures in a turbulent boundary layer....Pages 613-616
LDA measurements of Reynolds stresses in a swirling turbulent pipe flow....Pages 617-620
Time-resolved stereoscopic PIV of the log-layer in fully developed turbulent pipe flow....Pages 621-624
Massive separation in rotating turbulent flows....Pages 625-628
Scaling of torque in turbulent Taylor-Couette flow with background rotation....Pages 629-632
Velocity gradient statistics in a turbulent channel flow....Pages 633-636
Channel flow LES with stochastic modeling of the sub-grid acceleration....Pages 637-640
DNS of three-dimensional separation in turbulent diffuser flows....Pages 641-644
Optimal amplification of large scale streaks in the turbulent Couette flow....Pages 645-648
Symmetry of Coherent Vortices in Plane Couette Flow....Pages 649-652
Universal character of perturbation growth in near-wall turbulence....Pages 653-656
Experimental assessment of turbulent drag reduction by wall traveling waves....Pages 657-660
Effects of very-large roughness in turbulent channel flow....Pages 661-664
Roughness effects in a rotating turbulent channel....Pages 665-668
Front Matter....Pages 571-571
Mean Flow and Turbulence over Rough Surfaces....Pages 669-672
Front Matter....Pages 673-673
DNS of vibrating grid turbulence....Pages 675-675
Step onset from an initial uniform distribution of turbulent kinetic energy.....Pages 677-680
Fractal-generated turbulent scaling laws from a new scaling group of the multi-point correlation equation....Pages 681-684
Casimir Cascades in Two-Dimensional Turbulence....Pages 685-688
The development of truncated inviscid turbulence and the FPU-problem....Pages 689-692
The renormalized eddy-fragmentation equation and its exact solutions....Pages 693-696
Determination of the statistics of the velocity gradient tensor as a function of scale : solution of the tetrad model....Pages 697-700
TSF Experiment for comparision of high Reynold’s number turbulence in He I and He II : first results.....Pages 701-704
Extraction of the non-equilibrium energy spectrum in high Reynolds number turbulence....Pages 705-708
Universality of Kolmogorov law in spectrally condensed turbulence in thin layers....Pages 709-710
Multi-scale correlations in regular and fractal-generated turbulence....Pages 711-714
On an alternative explanation of anomalous scaling and how inertial is the inertial range....Pages 715-718
Phenomenological relation between the Kolmogorov constant and the skewness in turbulence....Pages 719-720
Kolmogorov scaling and intermittency in Rayleigh-Taylor turbulence....Pages 721-724
Observation of weak turbulence spectra of capillary waves....Pages 725-728
A new numerical methodology to follow the time-decay of turbulence....Pages 729-732
Velocity kinematic relations in decaying turbulent flow past a grid....Pages 733-736
Lagrangian intermittency and time-correlations in two-dimensional turbulence....Pages 737-740
Front Matter....Pages 741-741
Implicit Large-Eddy Simulation: Theory and Application....Pages 743-750
Front Matter....Pages 741-741
A challenging new problem for LES: the flow near the turbulent/nonturbulent interface....Pages 751-754
Towards practical large-eddy simulations of complex turbulent flows....Pages 755-758
Coherent Vortex Simulation: application to 3D homogeneous isotropic turbulence....Pages 759-762
LES of a Non-Premixed Flame with an Assumed Tophat FDF....Pages 763-766
Closure models for inhomogeneous turbulence....Pages 767-770
Statistical Mechanics of Fluid Turbulence based on the Cross-Independence Closure Hypothesis....Pages 771-774
Large-Eddy Simulation of a Two-Phase Plane Mixing-Layer....Pages 775-778
Subgrid particle resolution for the turbulent transport of a passive scalar....Pages 779-782
An adaptive local deconvolution method for general curvilinear coordinate systems....Pages 783-786
On under-resolved simulation of atmospheric convection....Pages 787-789
The Multispectral Method: Progress and Prospects....Pages 791-794
Discretization errors and subgrid scale implementations in Large Eddy Simulations....Pages 795-798
Front Matter....Pages 799-799
Reversals of the magnetic field generated by a turbulent flow....Pages 801-808
Direct measurement of turbulent magnetic diffusivity in liquid metal flow....Pages 809-812
Shell models of MHD turbulence....Pages 813-816
Turbulence induced by magnetic fields....Pages 817-820
Spin-up in MHD turbulence....Pages 821-824
Influence of helicities on statistical properties of MHD turbulence....Pages 825-828
Transient growth in MHD duct flow....Pages 829-832
Optical visualisation of the flow around a cylinder in electrolyte under strong axial magnetic field.....Pages 833-836
Front Matter....Pages 799-799
Synthetic turbulence model and DNS for magnetohydrodynamics with rotation....Pages 837-840
Spectral analysis of energy transfers in anisotropic MHD turbulence....Pages 841-844
Front Matter....Pages 845-845
Boundary layer influence on cavity noise generation....Pages 847-850
Instability waves as a source of subsonic jet noise....Pages 851-854
Experimental study of sound production for constricted channels: application to simplified vocal tract geometries....Pages 855-858
Turbulant Pressure Statistics in an Underwater Boundary-Layer Experiment....Pages 859-862
Spectral reconstruction of sound radiated by an organ pipe....Pages 863-866
Aerodynamic sound generation by turbulence in shear flows....Pages 867-870
Front Matter....Pages 871-871
On implicit turbulence modeling for LES of compressible flows....Pages 873-875
Injection of a plane reacting jet into a supersonic turbulent channel flow....Pages 877-880
Turbulent premixed flame fronts: fractal scaling and implications for LES modeling....Pages 881-884
Large eddy simulation of a lean premixed swirl flame in complex geometry - comparison of two turbulent combustion models....Pages 885-888
Front Matter....Pages 889-889
KS inertial range and validity of Richardson’s law....Pages 891-892
Lagrangian Vortex Methods in Turbulent Channel Flows....Pages 893-893
Unstable and turbulent flows simulated by means of the Boltzmann kinetic equation....Pages 895-895
Natural Transition in Plane Poiseuille Flow....Pages 897-898
Stabilization of the turbulent flows in anisotropic viscoelastic tubes....Pages 899-899
Simulation of induced transition in hypersonic regime: Validation of foot print of the vortical structures....Pages 901-902
Active grid generated turbulence....Pages 903-903
Velocity characterisation of axisymmetric jets from human-sized channels....Pages 905-905
Front Matter....Pages 889-889
The role of nonlocality in unsteady turbulence....Pages 907-907
Coherent enstrophy production and dissipation in 2D turbulence with and without walls....Pages 909-909
Space scale analysis of enstrophy transfers in two-dimensional turbulence....Pages 911-911
Hydrodynamic stability of a stratified suspension flow in a plane channel....Pages 913-913
Localization of compact invariant sets of the Lorenz’ 1984 model....Pages 915-915
Large-scale energy dissipation and equatorial superrotation in shallow water turbulence....Pages 917-917
The effects of rain on wind-driven turbulent flow....Pages 919-919
New results on grid-generated turbulence....Pages 921-921
Gas-liquid interaction under vibration field effect....Pages 923-923
An Invariant Nonlinear Eddy Viscosity Model based on a 4D Modelling Approach....Pages 925-925
Projection of the turbulence closure problem on the invariant triangle as the basis for improved predictions of complex flows....Pages 927-927
A computational study of the hydrodynamic forces on a rough wall....Pages 929-929
Turbulent flow structure investigation within target fluidic flowmeter....Pages 931-931
The Wake of a Single 2D Roughness Element Immersed in a Turbulent Boundary Layer....Pages 933-933
High spanwise wall-shear stress events in turbulent duct flow....Pages 935-936
A POD-based reconstruction method for the flow in the near-wall region....Pages 937-937
Near-wall velocity and wall shear stress correlations in a separating boundary layer....Pages 939-939
Lifetimes of flow topology in a turbulent boundary layer....Pages 941-941
RDT or low wavenumber modes’ dynamics?....Pages 943-943
Intermittency in high resolution direct numerical simulation of turbulence in a periodic box: a wavelet viewpoint....Pages 945-945
Front Matter....Pages 889-889
Detached Eddy Simulation of Turbulence Flows in a Pipe with Fractal Shape Orifices....Pages 947-948
Recovery of subgrid-scale turbulence kinetic energy in LES of channel flow....Pages 949-949
Beyond Reynolds stress analysis of quasilaminar flows....Pages 951-951
Anisotropic Organised Eddy Simulation for statistical and hybrid modelling of turbulent flows around bodies....Pages 953-954
Experimental vortex generation and instabilities at flow around a magnetic obstacle....Pages 955-955
A dynamic multiscale subgrid model for MHD turbulence based on Kolmogorov’s equation....Pages 957-957
Low-Prandtl number MHD cooling in a vertical cylindrical container....Pages 959-959
Anomalous scaling of passively advected magnetic field in the kinematic MHD Kazantsev-Kraichnan model....Pages 961-961
A new compressible turbulence model for free and wall-bounded shear layers....Pages 963-963
Modelling of turbulent flow in a gas burner....Pages 965-965
Back Matter....Pages 1-7