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Download PDF by Alexander John Taylor: Analysis of Quantised Vortex Tangle

By Alexander John Taylor

ISBN-10: 3319485555

ISBN-13: 9783319485553

ISBN-10: 3319485563

ISBN-13: 9783319485560

In this thesis, the writer develops numerical strategies for monitoring and characterising the convoluted nodal strains in 3-dimensional house, analysing their geometry at the small scale, in addition to their worldwide fractality and topological complexity---including knotting---on the big scale. The paintings is very visible, and illustrated with many appealing diagrams revealing this unanticipated element of the physics of waves. Linear superpositions of waves create interference styles, this means that in a few locations they advance each other, whereas in others they thoroughly cancel one another out. This latter phenomenon happens on 'vortex traces' in 3 dimensions. often wave superpositions modelling e.g. chaotic hollow space modes, those vortex strains shape dense tangles that experience by no means been visualised at the huge scale earlier than, and can't be analysed mathematically by way of any recognized innovations.

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Extra info for Analysis of Quantised Vortex Tangle

Example text

2), and to analyse properties of their geometry and topology. However, this simulation model puts significant restrictions on the length of a simulated vortex curve, which will eventually close on a relatively short lengthscale or (more commonly) terminate on the boundaries of the simulated region and so is statistically limited in total extent. g. eigenfunctions of a finite cavity [45]), it will not avoid them, and a single simulated volume will tend to contain many relatively short vortex segments.

6). Under such a model it is possible to simulate some volume of a chaotic wavefield, to track the vortex lines within it (we discuss this in detail in Chap. 2), and to analyse properties of their geometry and topology. However, this simulation model puts significant restrictions on the length of a simulated vortex curve, which will eventually close on a relatively short lengthscale or (more commonly) terminate on the boundaries of the simulated region and so is statistically limited in total extent.

We compare to previous analytic results where possible, as well as expectations from other systems. These results include analysis of local geometry, fractality and scaling that have previously been published in [88]. Chapter 4 contains the further analytical and numerical methods of topological analysis, beginning with a broad overview of all the relevant theory of knotting and linking. We continue by explaining the specific details of the topological calculations that we make use of in our own analysis.

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Analysis of Quantised Vortex Tangle by Alexander John Taylor


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