: Martin Oberlack, George Khujadze, Silke Günther, Tanja Weller, Michael Frewer, Joachim Peinke, Steph
: Martin Oberlack, George Khujadze, Silke Guenther, Tanja Weller, Michael Frewer, Joachim Peinke, Step
: Progress in Turbulence II Proceedings of the iTi Conference in Turbulence 2005
: Springer-Verlag
: 9783540326038
: 1
: CHF 133.60
:
: Maschinenbau, Fertigungstechnik
: English
: 306
: Wasserzeichen/DRM
: PC/MAC/eReader/Tablet
: PDF
Besides turbulence there is hardly any other scientific topic which has been considered as a prominent scientific challenge for such a long time. The special interest in turbulence is not only based on it being a difficult scientific problem but also on its meaning in the technical world and our daily life. This carefully edited book comprises recent basic research as well as research related to the applications of turbulence. Therefore, both leading engineers and physicists working in the field of turbulence were invited to the iTi Conference on Turbulence held in Bad Zwischenahn, Gemany 25th - 28th of September 2005. Discussed topics include, for example, scaling laws and intermittency, thermal convection, boundary layers at large Reynolds numbers, isotropic turbulence, stochastic processes, passive and active scalars, coherent structures, numerical simulations, and related subjects.
Preface 20056
Contents8
Fundamentals20
What Rayleigh-Benard, Taylor-Couette and Pipe Flows have in Common21
Small-Scale Statistics in High-Resolution Direct Numerical Simulation of Turbulence29
Numerical Investigation of Turbulent Jet Under Random Waves35
Scale-by-Scale Assessments of the Approach to Isotropy39
On the Decay of Isotropic Turbulence44
Oscillatory Relaxation Towards Turbulent States48
An Exact Solution for the Forced Burgers Equation53
Consistent Invariant Modelling of Axially Rotating Pipe Flow57
Small-Scale Anisotropy in MHD Turbulence Under Strong Uniform Magnetic Field61
Scaling in an Ensemble of Stochastic Forced Point Vortices65
Multiplier Statistics Explained by Stochastic Cascade Processes69
DNS and Scaling Laws of a Turbulent Channel Flow with Streamwise Rotation73
Experiments79
Characterization of a Turbulent Vortex Using Phase Averaged PIV Data80
Experimental Detection of the New Phenomenon of Turbulent Thermal Diffusion86
Anemometry in Snow Particle Flows90
Numerical and Experimental Investigations of the Dynamics and Structure of the Recirculation Zone in a Coaxial Jet Mixer94
On Anisotropy of Turbulent Flows in Regions of94
On Anisotropy of Turbulent Flows in Regions of94
9994
Experimental Analysis on the Transition Process of Internal Gravity Waves in a Strongly Stably- Stratified Mixing Layer103
The Correlation Between Velocity and Acceleration in Turbulence108
PIV Measurement of Coherent Structures and Turbulence Created by an Oscillating Flow at the End of a Thermoacoustic Stack112
Statistics of the Temperature Fluctuations as a Passive Scalar in a Freejet Experiment116
Coherent Structure120
Coherent Structures Identification in 2D Turbulence121
Multi-resolution Analysis of the Large-scale Coherent Structure in a Turbulent Separation Bubble Affected by Unsteady Wake125
Effect of Spanwise System Rotation on Longitudinal Vortical Structure of Homogeneous Shear Flow129
Generation of Large-scale Vorticity in Sheared Homogeneous and Rotating Inhomogeneous Turbulence134
Mean Modal Analysis of the Coherent Structures in a Two- dimensional Vortex Merger138
Low-Frequency Coherent Structures in Turbulent Flows142
Turbulent Boundary Layers146
Large-eddy Simulation of Accelerating Boundary Layers147
Generation of Turbulent Inlet Conditions for Velocity/ Thermal Boundary Layer Simulations154
Experimental Analysis of a Turbulent Boundary Layer at High Reynolds Numbers159
Hybrid RANS/LES of Neutral Atmospheric Boundary Layer: Simple Terrain163
Evidence on Non-Universality of K´arm´an Constant167
Turbulent Marginal Separation: A Novel Triple- Deck Problem for Turbulent Flows172
Symmetry-preserving Regularization Modeling of Turbulent Channel Flow176
Convection181
Numerical Experiments of Turbulent Thermal Convection at High Rayleigh Numbers182
Homogeneous Rayleigh-B´enard Convection186
A RANS Model for the Pressure-velocity Fluctuation Correlation190
Temperature Measurements in a Rectangular Rayleigh- B´enard Cell194
Inertial Convertion in a Vertical Channel198
Applying the Leray- a Model to Rayleigh- B´enard Convection202
Analysis of Thermal Dissipation Rates Based on Direct Numerical and Large Eddy Simulations of Turbulent Rayleigh B´enard Convection206
Scalar Mixing and Particles210
Inertial Particles in Turbulence211
Turbulent Pair Dispersion: A PTV Experiment217
Application of a Two-point Closure to the Dispersion of Particles in Isotropic and Sheared Turbulence221
Clustering of Inertial Particles225
Self Similar Two Particle Separation Model229
Coarse-grained Scalar Transport: Closures and Large- eddy Simulations233
Statistics and Geometry in High-Schmidt Number Scalar Mixing238
Polymer and Scalars243
Scale by Scale Budget in Viscoelastic Wall Turbulence244
Alignment Statistics of a Passive Scalar Gradient in Nonstationary Flow Topology248
An Improved Model for the Turbulent Atmospheric Boundary Layer Including Urban Canopy252
LES of Turbulent Low Mach Number Shear Layers with Active Scalars Using Explicit Filtering257
Statistical Closures for Homogeneous Shear Flow Turbulence of Dilute Polymer Solutions261
Large Eddy Simulation265
Towards Wall Models for LES of Separated Flows266
Numerical Study of Turbulent Flow in a Triangular Duct with Internal Ribbed Surfaces270
Multi-Cycle Simulations of In-Cylinder Flows on Unstructured Grids using a Hybrid VLES Model274
Investigation of Lattice Boltzmann Methods for LES278
Conditional Averaging of the Fully Developed Stationary Ribbed Duct Flow Using Q Criteria283
Prediction of Flow and Heat Transfer in a Czochralski Crucible using LES with Interface Tracking287
Numerical Study of Turbulent Flow Around an Obstacle at the Wall of a Rectangular Duct291
Energy Content of Large-scale Turbulence in Wide Open Channel Flows295
Subgrid Modeling in Large-eddy Simulation of Complex Flows299