Share

Magnetohydrodynamic Stability Analysis of Non-axisymmetric Tokamak Plasmas Using the Linear Visco-resistive Stability Code CASTOR3D

2024
Download Magnetohydrodynamic Stability Analysis of Non-axisymmetric Tokamak Plasmas Using the Linear Visco-resistive Stability Code CASTOR3D PDF Online Free

Author :
Release : 2024
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

GET EBOOK


Book Synopsis Magnetohydrodynamic Stability Analysis of Non-axisymmetric Tokamak Plasmas Using the Linear Visco-resistive Stability Code CASTOR3D by : Jonas Puchmayr

Download or read book Magnetohydrodynamic Stability Analysis of Non-axisymmetric Tokamak Plasmas Using the Linear Visco-resistive Stability Code CASTOR3D written by Jonas Puchmayr. This book was released on 2024. Available in PDF, EPUB and Kindle. Book excerpt:

Magnetohydrodynamic Stability of Tokamaks

2015-02-09 Science
Download Magnetohydrodynamic Stability of Tokamaks PDF Online Free

Author :
Release : 2015-02-09
Genre : Science
Kind : eBook
Book Rating : 328/5 ( reviews)

GET EBOOK


Book Synopsis Magnetohydrodynamic Stability of Tokamaks by : Hartmut Zohm

Download or read book Magnetohydrodynamic Stability of Tokamaks written by Hartmut Zohm. This book was released on 2015-02-09. Available in PDF, EPUB and Kindle. Book excerpt: This book bridges the gap between general plasma physics lectures and the real world problems in MHD stability. In order to support the understanding of concepts and their implication, it refers to real world problems such as toroidal mode coupling or nonlinear evolution in a conceptual and phenomenological approach. Detailed mathematical treatment will involve classical linear stability analysis and an outline of more recent concepts such as the ballooning formalism. The book is based on lectures that the author has given to Master and PhD students in Fusion Plasma Physics. Due its strong link to experimental results in MHD instabilities, the book is also of use to senior researchers in the field, i.e. experimental physicists and engineers in fusion reactor science. The volume is organized in three parts. It starts with an introduction to the MHD equations, a section on toroidal equilibrium (tokamak and stellarator), and on linear stability analysis. Starting from there, the ideal MHD stability of the tokamak configuration will be treated in the second part which is subdivided into current driven and pressure driven MHD. This includes many examples with reference to experimental results for important MHD instabilities such as kinks and their transformation to RWMs, infernal modes, peeling modes, ballooning modes and their relation to ELMs. Finally the coverage is completed by a chapter on resistive stability explaining reconnection and island formation. Again, examples from recent tokamak MHD such as sawteeth, CTMs, NTMs and their relation to disruptions are extensively discussed.

Calculations of Axisymmetric Stability of Tokamak Plasmas with Active and Passive Feedback

1991
Download Calculations of Axisymmetric Stability of Tokamak Plasmas with Active and Passive Feedback PDF Online Free

Author :
Release : 1991
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

GET EBOOK


Book Synopsis Calculations of Axisymmetric Stability of Tokamak Plasmas with Active and Passive Feedback by :

Download or read book Calculations of Axisymmetric Stability of Tokamak Plasmas with Active and Passive Feedback written by . This book was released on 1991. Available in PDF, EPUB and Kindle. Book excerpt: A new linear MHD stability code, NOVA-W, has been developed in order to study feedback stabilization of the axisymmetric mode in deformable tokamak plasmas. The NOVA-W code is a modification of the non-variational MHD stability code NOVA that includes the effects of resistive passive conductors and active feedback circuits. The vacuum calculation has been reformulated in terms of the perturbed poloidal flux to allow the inclusion of perturbed toroidal currents outside the plasma. The boundary condition at the plasma-vacuum interface relates the instability displacement to the perturbed poloidal flux. This allows a solution of the linear MHD stability equations with the feedback effects included. The passive stability predictions of the code have been tested both against a simplified analytic model and against a different numerical calculation for a realistic tokamak configuration. The comparisons demonstrate the accuracy of the NOVA-W results. Active feedback calculations are performed for the CIT tokamak design demonstrating the effect of varying the position of the flux loops that provide the measurements of vertical displacement. The results compare well with those computed earlier using a less efficient nonlinear code. 37 refs., 13 figs.

Feedback Stabilization of the Axisymmetric Instability of a Deformable Tokamak Plasma

1987
Download Feedback Stabilization of the Axisymmetric Instability of a Deformable Tokamak Plasma PDF Online Free

Author :
Release : 1987
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

GET EBOOK


Book Synopsis Feedback Stabilization of the Axisymmetric Instability of a Deformable Tokamak Plasma by :

Download or read book Feedback Stabilization of the Axisymmetric Instability of a Deformable Tokamak Plasma written by . This book was released on 1987. Available in PDF, EPUB and Kindle. Book excerpt: We analyze the magnetohydrodynamic (MHD) stability of the axisymmetric system consisting of a free boundary, non-circular cross-section tokamak plasma, finite resistivity passive conductors, and an active feedback system with magnetic flux pickup loops, a proportional amplifier with gain G, and current carrying poloidal field coils. Numerical simulation of a system that is unstable with G = 0 shows that for some placements of the pickup loops, the system will remain unstable for all values of G, while for other placements of the loops, the system will be stable for G> G/sub crit/. This behavior is explained by analysis using an extended energy principle, and it is shown to result from the deformability of the plasma cross section. 9 refs., 5 figs.

Magnetohydrodynamic Stability Analyses of Tokamak Edge Plasmas

2005
Download Magnetohydrodynamic Stability Analyses of Tokamak Edge Plasmas PDF Online Free

Author :
Release : 2005
Genre :
Kind : eBook
Book Rating : 011/5 ( reviews)

GET EBOOK


Book Synopsis Magnetohydrodynamic Stability Analyses of Tokamak Edge Plasmas by : Samuli Saarelma

Download or read book Magnetohydrodynamic Stability Analyses of Tokamak Edge Plasmas written by Samuli Saarelma. This book was released on 2005. Available in PDF, EPUB and Kindle. Book excerpt:

You may also like...