Influence of plasma equilibrium on chaotic transport in tokamaks
Chaotic transport in symplectic maps: Applications in plasma
Mechanism of transport in symplectic maps applied to magnetic confined plasmas
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Chaotic transport in plasmas
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| Author(s): |
Eduardo Roberto De Lascio
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Física (IF/SBI) |
| Defense date: | 2008-02-28 |
| Examining board members: |
Ibere Luiz Caldas;
Mauro Sergio Dorsa Cattani;
Felipe Barbedo Rizzato
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| Advisor: | Ibere Luiz Caldas |
| Abstract | |
This work presents a study of the particle transport through the edge of a plasma cofined in a tokamak. A model, with an infinite number of drift waves superposed to an equilibrium electrostatic potential, in addition to an uniform magnetic field, is introduced, what puts the problem in the form of mappings. Two mappings are analysed, viz. the standard map and the standard non-twist map. Numerical results for the radial particle transport in the standard map are presented. For the standard non-twist map besides the transport analysis, a study of the manifolds of hyperbolic points and of the relation of their configuration with the transport is carried out, showing that the particle transport is changed when the manifold reconnection occurs. (AU) | |