Sedimentation and Sediment Transport: Proceedings of the Symposium held in Monte Verità , Switzerland, from September 2nd – to September 6th, 2002

It is evident, that for a number of ecological and technical problems in rivers and lakes a better knowledge of sediment transport and sedimentation is needed together with the ability to predict and simulate sediment behaviour. On the other hand, a stagnation of research in these topics could be observed in the last decades. At the Symposium an attempt was made to present new results in mathematics and natural sciences relevant for the sediment problem. New strategies were discussed to tackle the complexity of the problem. Basic theoretical research and laboratory experiments alone are incomplete without a feedback from field observations and measurements. For that reason well-known researchers from both basic and engineering sciences were invited. Turbulence, non-local phenomena, stability, interaction, feedback systems, self-organization, two-phase flow and chaotic processes, numerical simulations as well as measurement techniques and field results were the keywords of the Symposium. This proceedings are a good source for those interested in the state of the art. Content: Front Matter....Pages i-x Front Matter....Pages 1-1 Some Mathematical Contributions to the Understanding of Turbulence....Pages 3-9 Nonlocality in Turbulence....Pages 11-22 Effect of a Roughness Transition on Turbulent Structures in the Outer Layer....Pages 23-28 Stokes Flows at Infinite Rayleigh Number....Pages 29-42 Turbulent Boundary Layers Over Compliant Walls: Low-Dimensional Models and Direct simulations....Pages 43-50 The Energetics and the Heat and Mass Transfer in Unsteady Stratified Turbulence....Pages 51-54 Front Matter....Pages 55-55 The Probability of Sediment Movement at the Threshold of Motion and Time Dependent Fluid Processes....Pages 57-60 Turbulence Dynamics in a Two-Phase Flow....Pages 61-65 Investigation of Particle Size Distribution in Turbulent Open Channel Flow....Pages 67-74 Entrainment of Large Particles from Granular Bed Protections Under Low-Mobility Transport Conditions....Pages 75-78 Interaction Between Turbulent Open-Channel Flow and Pressure Fluctuations in Subsurface Gravel Layer....Pages 79-82 Two-Phase Flow Analysis of Sediment Velocity....Pages 83-86 Experimental Measurement of Sediment Suspension and Particle Kinetic Stress Transport Within a Horizontal Channel Flow....Pages 87-90 Front Matter....Pages 91-91 Turbulent Structure of Excited Axisymmetric Impinging Jet....Pages 93-100 Resuspension by Droplets....Pages 101-104 Particle resuspension by an impacting vortex ring....Pages 105-108 Front Matter....Pages 109-109 On the Effects of Stokes, Richardson, and Stability Numbers in Persistent and Accelerating Vortices....Pages 111-120 Centrifugal Sedimentation Processes in Suspensions — Fundamentals and Challenges of Efficient Simulation....Pages 121-126 On the One-Dimensional Flow Approximation in Sedimentation Processes....Pages 127-130 Particle Swarms Settling in Calm Water....Pages 131-136 Front Matter....Pages 109-109 Flow of Media with High Nanoparticles’ Concentration....Pages 137-142 Front Matter....Pages 143-143 The Effect of Homogeneous Isotropic Turbulence on the Settling of Heavy Particles....Pages 145-148 Numerical Investigation of Two-Way Coupling Mechanisms in Dilute, Particle Laden Flows....Pages 149-154 Statistics of Turbulence-Induced Fluctuations of Particle Concentration....Pages 155-158 Numerical Simulation of the Coherent Structures in a Homogeneous Sedimenting Suspension....Pages 159-164 Simulation of Particulate Flow Using Particle Methods a P3M Algorithm for Charged Particulates....Pages 165-168 Front Matter....Pages 169-169 LDV, PIV and Les Investigation of Flow Over a Fixed Dune....Pages 171-178 Sediment Continuity for Rivers with Non-Uniform Sediment, Dunes, and Bed Load Transport....Pages 179-182 The Self-Organization of Ripples Towards Two-Dimensional Forms....Pages 183-186 An Integro-Differential Model for The Dynamics of Aeolian Sand Ripples....Pages 187-194 Simulation of Sedimentation and Mixing in Deeply-Submerged Gravity Currents....Pages 195-200 Front Matter....Pages 201-201 River Braiding in Relation to Unsteady Water and Sediment Transport....Pages 203-206 On the Validity and Limits of Continuous-Phase Modelling of Sediment Transport in Estuaries and Coastal Zones....Pages 207-210 Modeling the Hydraulics and Erosion Process in Breach Formation Due to Overtopping....Pages 211-220 Grain-Size Specific Suspended Sediment Transport and Flow Resistance in Large Sand-Bed Rivers....Pages 221-227 Transport Thresholds in Gravel-Bed Rivers....Pages 229-236 Advancements in Sediment Transport Investigations using Quantitative Imaging Techniques....Pages 237-240 A Lid-Driven Elongated Annular Flume (Leaf) for the Determination of Sediment Transport Properties....Pages 241-244 Petroleum Patch Transport in Marine and Coastal Zones....Pages 245-248 Front Matter....Pages 249-249 Velocity Derivatives in Turbulent Flow Obtained from 3D-PTV Measurements....Pages 251-254 Back Matter....Pages 269-271 Low Coherence Techniques for Imaging in Multiphase Flows....Pages 255-267 Proceedings of the Symposium held in Monte Verità, Switzerland, from September 2 to September 6, 2002