Iutam Symposium on Developments in Geophysical Turbulence: Proceedings of the Iutam Symposium Held at the National Center for Atmospheric Research, Boulder, Co, 16-19 June 1998: 58 - Rilegato

Iutam Symposium On Developments In Geophysical Turbulence

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ISBN 10: 0792366735 ISBN 13: 9780792366737

Casa editrice: Kluwer Academic Pub, 2000

Riassunto

This symposium continues a long tradition for IUGGjIUTAM symposia going back to "Fundamental Problems in Thrbulence and their Relation to Geophysics" Marseille, 1961. The five topics that were emphasized were: turbulence modeling, statistics of small scales and coherent structures, con­ vective turbulence, stratified turbulence, and historical developments. The objective was to consider the ubiquitous nature of turbulence in a variety of geophysical problems and related flows. Some history of the contribu­ tions of NCAR and its alumni were discussed, including those of Jackson R Herring, who has been a central figure at NCAR since 1972. To the original topics we added rotation, which appeared in many places. This includes rotating stratified turbulence, rotating convective turbulence, horizontal rotation that appears in flows over terrain and the role of small­ scale vorticity in many flows. These complicated flows have recently begun to be simulated by several groups from around the world and this meeting provided them with an excellent forum for exchanging results, plus inter­ actions with those doing more fundamental work on rotating stratified and convective flows. New work on double diffusive convection was given in two presentations. The history of Large Eddy Simulations was presented and several new approaches to this field were given. This meeting also spawned some interesting interactions between observational side and how to inter­ pret the observations with modeling and simulations around the theme of particle dispersion in these flows.

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Contenuti:

Preface. 1. A brief history of the Geophysical Turbulence Program at NCAR; J.R. Herring. 2. The meteorological development of large eddy simulation; D.K. Lilly. 3. Developments in high-Rayleigh number convection; R.W. Griffiths. 4. Direct numerical simulations of particle motion in relation to structure in the convective boundary layer; B. van Haarlem, T.M. Nieuwstadt. 5. Boundary sources of potential vorticity in geophysical circulations; R. Hallberg, P.B. Rhines. 6. Three-dimensional initiation of thermohaline fingering; E.M. Saiki, et al. 7. Aspects of stratified turbulence; H.J.S. Fernando. 8. Particle dispersion and vortex formation in rotating stratified turbulence; Y. Kimura, O. Métais. 9. Structural features of breaking waves in stratified flow over mountains; O. Eiff, P. Bonneton. 10. Vortex persistence; A.J. Cotel, R.E. Breidenthal. 11. Formation of tracer gradients in nearly two-dimensional flows; B.L. Hua, et al. 12. Evolution of a tracer gradient in an incompressible, two-dimensional flow; H. Segur. 13. Comments on `Evolution of a tracer gradient in an incompressible, two-dimensional flow' by Harvey Segur; B.L. Hua, et al. 14. Analytical model for vertical collapse and instability in stably stratified flows; A.J. Majda, et al. 15. Emergence of circumpolar vortex in two dimensional turbulence on a rotating sphere; Y.-Y. Hayashi, et al. 16. Direct laboratory simulations of 3D vortex structures in stably stratified rotating fluids; A.M. Fincham. 17. Statistics ofcoherent fine scale structure in turbulent mixing layer; M. Tanahashi, et al. 18. Structure and dynamics of small-scale turbulence in stably stratified homogeneous shear flows; P.J. Diamessis, K.K. Nomura. 19. Spectral eddy-viscosity based LES of shear and rotating flows; M. Lesieur, et al. 20. Entrainment and subgrid lengthscales in large-eddy simulations of atmospheric boundary-layer flows; B. Stevens, et al. 21. Extending Ludgren's transformation to construct stretched vortex solutions of the 3D Navier-Stokes and Euler equations; J.D. Gibbon. 22. A one-dimensional MHD model of solar flares: statistics or physics; S. Galtier, et al.

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• Editore: Kluwer Academic Pub
• Data di pubblicazione: 2000
• ISBN 10: 0792366735
• ISBN 13: 9780792366737
• Rilegatura: Copertina rigida
• Numero di pagine: 297
• Redattore: Kimura Yoshifumi, Kerr Robert M.