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Tubes, Sheets and Singularities in Fluid Dynamics: Proceedings of the NATO ARW held in Zakopane, Poland, 2–7 September 2001, Sponsored as an IUTAM Symposium by the International Union of Theoretical and Applied Mechanics de K. Bajer

Tubes, Sheets and Singularities in Fluid Dynamics: Proceedings of the NATO ARW held in Zakopane, Poland, 2–7 September 2001, Sponsored as an IUTAM Symposium by the International Union of Theoretical and Applied Mechanics: Fluid Mechanics and Its Applications, cartea 71

Editat de K. Bajer, H. K. Moffatt
en Limba Engleză Paperback – 13 noi 2013
Modern experiments and numerical simulations show that the long-known coherent structures in turbulence take the form of elongated vortex tubes and vortex sheets. The evolution of vortex tubes may result in spiral structures which can be associated with the spectral power laws of turbulence. The mutual stretching of skewed vortex tubes, when they are close to each other, causes rapid growth of vorticity. Whether this process may or may not lead to a finite-time singularity is one of the famous open problems of fluid dynamics.
This book contains the proceedings of the NATO ARW and IUTAM Symposium held in Zakopane, Poland, 2-7 September 2001. The papers presented, carefully reviewed by the International Scientific Committee, cover various aspects of the dynamics of vortex tubes and sheets and of their analogues in magnetohydrodynamics and in quantum turbulence. The book should be a useful reference for all researchers and students of modern fluid dynamics.
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Specificații

ISBN-13: 9789401739535
ISBN-10: 9401739536
Pagini: 404
Ilustrații: XVI, 379 p.
Dimensiuni: 155 x 235 x 21 mm
Greutate: 0.56 kg
Ediția:2002
Editura: SPRINGER NETHERLANDS
Colecția Springer
Seria Fluid Mechanics and Its Applications

Locul publicării:Dordrecht, Netherlands

Public țintă

Research

Cuprins

Vortex Structure, Stability and Evolution.- Simulation of vortex sheet roll-up: chaos, azimuthal waves, ring merger.- Merging of non-symmetric Burgers vortices.- Effect of stretching on vortices with axial flow.- Optimal two-dimensional perturbations in a stretched shear layer.- Advection-diffusion of a passive scalar in the flow of a decaying vortex.- Linear stability of a vortex ring revisited.- The vortex-in-cell method for the study of three-dimensional vortex structures.- L-transition from right- to left-handed helical vortices.- Dynamical behaviour of counter-curren axisymmetric shear flows.- Singular Vortex Filaments.- Complexity measures of tangled vortex filaments.- Corotating five point vortices in a plane.- On motion of a double helical vortex in a cylindrical tube.- Intensive and weak mixing in the chaotic region of a velocity field.- Evolution of the anisotropy of the quantum vortex tangle.- Motion of vortex lines in quantum mechanics.- Magnetic Structure, Topology and Reconnection.- Magnetic dissipation: spatial and temporal structure.- Current sheets in the Sun’s corona.- A model for magnetic reconnection.- Reconnection in magnetic and vorticity fields.- Energy, helicity and crossing number relations for complex flows.- Helicity conservation laws.- A third-order topological invariant for three magnetic fields.- Asymptotic structure of fast dynamo eigenfunctions.- Vortex Structure in Turbulent Flow.- Vortex tubes, spirals, and large-eddy simulation of turbulence.- Low-pressure vortex analysis in turbulence: life, structure, and dynamical role of vortices.- Vortex bi-layers and the emergence of vortex projectiles in compressible accelerated inhomogeneous flows (AIFs).- Interaction of localised packets of vorticity with turbulence.- Extraction of coherentvortex tubes in a 3D turbulent mixing layer using orthogonal wavelets.- Vortex tubes in shear-stratified turbulent flows.- Coherent dynamics in wall turbulence.- Some characteristics of the coherent structures in turbulent boundary layers.- A singularity-free model of the local velocity gradient and acceleration gradient structure of turbulent flow.- Spiral small-scale structures in compressible turbulent flows.- Finite-Time Singularity Problems.- Discrete groups, symmetric flows and hydrodynamic blowup.- Diffusion of Lagrangian invariants in the Navier-Stokes equations.- Evidence for singularity formation in a class of stretched solutions of the equations for ideal MHD.- Numerical evidence of breaking of vortex lines in an ideal fluid.- Sufficient condition for finite-time singularity and tendency towards self-similarity in a high-symmetry flow.- Finite time singularities in a class of hydro dynamic models.- On stabilisation of solutions of singular quasi-linear parabolic equations with singular potentials.- Stokes Flow and Singular Behaviour Near Boundaries.- Interactions between two close spheres in Stokes flow.- Effective boundary conditions for creeping flow along a periodic rough surface.- Steady Stokes flow in a trihedral corner.

Recenzii

"...the authors merit considerable credit for so succinctly and effectively presenting and summarizing their contributions. [...] Finally, the editors, K. Bajer and H.K. Moffatt, and the publisher deserve praise for the typography of the papers, their uniformity of style and being easy on the eyes, and the brief time that was allowed to elapse between the oral presentations at the meeting and their appearance in print. This volume is an invaluable guide to the state of research in some of the most important areas of vortex dynamics at the commencement of this decade."
(Stanley A. Berger, University of California, Berkeley in AIAA Journal, 41:10 (2003)