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Quantized Vortex Dynamics and Superfluid Turbulence

  • Fester Einband
  • 484 Seiten
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This book springs from the programme Quantized Vortex Dynamics and Sup- ?uid Turbulence held at the Isaac Newton Institute for Mat... Weiterlesen
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This book springs from the programme Quantized Vortex Dynamics and Sup- ?uid Turbulence held at the Isaac Newton Institute for Mathematical Sciences (University of Cambridge) in August 2000. What motivated the programme was the recognition that two recent developments have moved the study of qu- tized vorticity, traditionally carried out within the low-temperature physics and condensed-matter physics communities, into a new era. The ?rst development is the increasing contact with classical ?uid dynamics and its ideas and methods. For example, some current experiments with - lium II now deal with very classical issues, such as the measurement of velocity spectra and turbulence decay rates. The evidence from these experiments and many others is that super?uid turbulence and classical turbulence share many features. The challenge is now to explain these similarities and explore the time scales and length scales over which they hold true. The observed classical aspects have also attracted attention to the role played by the ?ow of the normal ?uid, which was somewhat neglected in the past because of the lack of direct ?ow visualization. Increased computing power is also making it possible to study the coupled motion of super?uid vortices and normal ?uids. Another contact with classical physics arises through the interest in the study of super?uid vortex - connections. Reconnections have been studied for some time in the contexts of classical ?uid dynamics and magneto-hydrodynamics (MHD), and it is useful to learn from the experience acquired in other ?elds.

This book is primarily concerned with turbulence in superfluid helium. Quantized vorticity has traditionally generated great interest among physicists but there are now also important engineering applications, such as liquid helium cooling of superconducting magnets. Presently much research is done on the relationship between superfluid turbulence and classical turbulence, as intense turbulence can be generated in liquid helium due to its small kinematic viscosity. There is also a close relationship between superfluid behaviour and quantized vorticity in liquid helium and in atomic Bose--Einstein condensates. Putting special emphasis on the interplay between the different disciplines involved, this readable account of recent research will appeal not only to established researchers but also to newcomers and graduate students wishing to enter the field.

to Superfluid Vortices and Turbulence.- Turbulence Experiments.- An Introduction to Experiments on Superfluid Turbulence.- The Experimental Evidence for Vortex Nucleation in 4He.- Applications of Superfluid Helium in Large-Scale Superconducting Systems.- The Temperature Dependent Drag Crisis on a Sphere in Flowing Helium II.- Experiments on Quantized Turbulence at mK Temperatures.- Grid-Generated He II Turbulence in a Finite Channel - Experiment.- Intermittent Switching Between Turbulent and Potential Flow Around a Sphere in He II at mK Temperatures.- Vortex Dynamics.- Vortex Filament Methods for Superfluids.- to HVBK Dynamics.- Magnus Force, Aharonov-Bohm Effect, and Berry Phase in Superfluids.- Using the HVBK Model to Investigate the Couette Flow of Helium II.- Turbulence Theory.- An Introduction to the Theory of Superfluid Turbulence.- Numerical Methods for Coupled Normal-Fluid and Superfluid Flows in Helium II.- From Vortex Reconnections to Quantum Turbulence.- Vortices and Stability in Superfluid Boundary Layers.- Grid Generated He II Turbulence in a Finite ChannelTheoretical Interpretation.- Vortex Tangle Dynamics Without Mutual Friction in Superfluid 4He.- Applications of the Gaussian Model of the Vortex Tangle in the Superfluid Turbulent He II.- Stochastic Dynamics of a Vortex Loop. Thermal Equilibrium.- Stochastic Dynamics of a Vortex Loop. Large-Scale Stirring Force.- Nonequilibrium Vortex Dynamics in Superfluid Phase Transitions and Superfluid Turbulence.- The NLSE and Superfluidity.- The Nonlinear Schrödinger Equation as a Model of Superfluidity.- Vortex Nucleation and Limit Speed for a Flow Passing Nonlinearly Around a Disk in the Nonlinear Schrödinger Equation.- Vortices in Nonlocal Condensate Models of Superfluid Helium.- Ginzburg-Landau Description of Vortex Nucleation in a Rotating Superfluid.- Weak Turbulence Theory for the Gross-Pitaevskii Equation.- Dissipative Vortex Dynamics and Magnus Force.- Transition to Dissipation in Two- and Three-Dimensional Superflows.- Bose-Einstein Condensation.- Motion of Objects Through Dilute Bose-Einstein Condensates.- Stability of a Vortex in a Rotating Trapped Bose-Einstein Condensate*.- Kinetics of Strongly Non-equilibrium Bose-Einstein Condensation.- Quantum Nucleation of Phase Slips in BoseEinstein Condensates.- Vortex Reconnections and Classical Aspects.- Vortex Reconnection in Normal and Superfluids.- Helicity in Hydro and MHD Reconnection.- Tropicity and Complexity Measures for Vortex Tangles.- The Geometry of Magnetic and Vortex Reconnection.- Current-Sheet Formation near a Hyperbolic Magnetic Neutral Line.- Nonlocality in Turbulence.- Helium 3 and Other Systems.- Quantized Vorticity in Superfluid 3He-A: Structure and Dynamics.- Vortices in Metastable 4He Films.- Quantum Hall E.ect Breakdown Steps and Possible Analogies with Classical and Super.uid Hydrodynamics.- Atomic Bose Condensate with a Spin Structure: The Use of Bloch State.- Quantum Dynamics of Vortex-Antivortex Pairs in a Circular Box.


Titel: Quantized Vortex Dynamics and Superfluid Turbulence
EAN: 9783540422266
ISBN: 3540422269
Format: Fester Einband
Herausgeber: Springer Berlin Heidelberg
Anzahl Seiten: 484
Gewicht: 887g
Größe: H241mm x B160mm x T30mm
Jahr: 2001
Auflage: 2001

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