IUTAM Symposium on Reynolds Number Scaling in Turbulent Flow

This volume presents selected papers from the IUTAM Symposium on Reynolds Number Scaling in Turbulent Flow, convened in Princeton, NJ, USA, September I1-13, 2002. The behavior ofturbulence at high Reynolds number is interesting from a fundamental point of view, in that most theories of turbulence make very specific predictions in the limit of infinite Reynolds number. From a more practical point of view, there exist many applications that involve turbulent flow where the Reynolds numbers are extremely large. For example, large vehicles such as submarines and commercial transports operate at Reynolds 9 numbers based on length ofthe order oft0 , and industrial pipe flows cover a 7 very wide range of Reynolds numbers up to 10 - Many very important applications of high Reynolds number flow pertain to atmospheric and other geophysical flows where extremely high Reynolds numbers are the rule rather than the exception, and the understanding of climate changes and the prediction of destructive weather effects hinges to some extent on our appreciation ofhigh-Reynolds number turbulence behavior. The important effects of Reynolds number on turbulence has received a great deal of recent attention. The objective of the Symposium was to bring together many of the world's experts in this area to appraise the new experimental results, discuss new scaling laws and turbulence models, and to enhance our mutual understanding of turbulence.

Proceedings of the IUTAM Symposium held in Princeton, NJ, USA, September 11-13, 2002

Contributes to the knowledge of turbulence

Opening Address IUTAM and Turbulence.- Reynolds-number-dependent scaling law for turbulent boundary layers.- Statistics, correlations, and scaling in a canonical, incompressible turbulent boundary layer with Re?2 ? 1.15x105.- Turbulence intensity similarity laws for turbulent boundary layers.- Nonlinear interaction of coherent structures in wall turbulence at low-to-moderate Reynolds numbers.- Empirical assessment on the mean flow similarity of flat-plate turbulent boundary layers.- Similarity law of turbulence intensity distribution for channel flows.- Lagrangian modelling of turbulent diffusion in the atmosphere - recent developments.- Studies of high Reynolds number turbulence in the atmospheric surface layer over the salt playa of western Utah.- A top-down theory for the neutral atmospheric surface layer compared with experiments.- New scaling laws of shear-free turbulent diffusion and diffusion-waves.- The non self similar scaling ofvorticity in a shear layer.- Reynolds and Froude number scaling in stably-stratified flows.- The non-universality of the large wave number vorticity field at R» = 850.- Reynolds number dependencies in boundary layer axial stress and scalar variance transport.- Effects of shear sheltering in atmospheric surface layer flow.- Background on superfluid turbulence.- Superfluid turbulence: experiments, physical principles, and outstanding problems.- Numerical simulations of vortex reconnections in superfluid turbulence.- Reynolds number scaling of wall layer velocity-vorticity products.- Scaling of the large-scale motions in fully developed turbulent channel flow.- The mean velocity profile of two-dimensional fully-developed turbulent plane-channel flows.- Non-extensive model for turbulent flow in a rapidly rotating annulus.- A unifiedtheory for the origin of turbulence and its subsequent evolution.- A Reynolds number independent model for turbulence in Couette Flow.- Scaling of the near-wall layer beneath reattaching separated flow.- High resolution Direct Numerical Simulation of turbulence: spectra of fourth order velocity moments.- Scaling of multi-particle Lagrangian statistics in Direct Numerical Simulations.- Development of high Reynolds number optimal LES models.- Similarity scaling and statistics of pressure fluctuation in turbulence.- Convection, pressure and dissipation in three-dimensional turbulence.- Dependence of Levy statistics with Reynolds number.- The asymptotic profiles in forced convection turbulent boundary layers.- Scaling turbulent boundary layer with suction or blowing.- Homogeneous anisotropic turbulence.- Four-dimensional measurements of the structure of dissipative scales in an aqueous near-isotropic turbulence.- Mixing: randomness, space dimension, and Reynolds number.- The spectral transfer in isotropic turbulence.- Re dependence of the Kolmogorov constant and scaling.- Suppression of vortical motions in compressible isotropic turbulence.- On the regularity of solutions to the Navier-Stokes equations.- News about the intermittency exponent.- A gas-phase near-isotropic turbulence and its wavelet analysis for studying fine-scale intermittency.- Asymmetric time correlations in turbulent shear flows.- Experimental tests of mean velocity distribution laws derived by Lie group symmetry methods in turbulent boundary layers.- Revised log-law constants for fully-developed turbulent pipe flow.- Scaling of the turbulent boundary layer at high Reynolds numbers.- Hot-wire measurements of two point correlations in the flat plate boundary layer at high Reynolds numbers.- On the experimental sorting of competing theories for wall-bounded turbulent flows.- Scaling of near-wall structures in turbulent boundary layers subjected to adverse pressure gradient.- An experimental study of a self-preserving boundary layer with a power-law variation of free-stream velocity.- On the use of Reynolds number to scale the effect of obstacles on a depth-limited flow in a gravel-bed river.- Investigating Reynolds scaling of tip-leakage vortex flow via numerical simulations.- Evaluation of mixing energy in laboratory flasks.- Drag reduction in turbulent flows using Lorentz force actuation.- List of Participants.- Author Index.