0
Technical Brief

Control of Heat and Mass Transfers Due to Tearing Mode-Based Magnetic Islands During Disruption Phase in IR-T1 Tokamak

[+] Author and Article Information
R. Sadeghi, M. Ghoranneviss, M. K. Salem

Plasma Physics Research Center,
Science and Research Branch,
Islamic Azad University,
Tehran, Iran

A. Salar Elahi

Plasma Physics Research Center,
Science and Research Branch,
Islamic Azad University,
Tehran, Iran
e-mail: Salari_phy@yahoo.com

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received October 30, 2016; final manuscript received January 6, 2018; published online March 23, 2018. Editor: Portonovo S. Ayyaswamy.

J. Heat Transfer 140(6), 064502 (Mar 23, 2018) (4 pages) Paper No: HT-16-1704; doi: 10.1115/1.4039012 History: Received October 30, 2016; Revised January 06, 2018

A structural change of perturbed magnetic configurations (such as magnetic islands) during disruption phase in IR-T1 tokamak was studied. The singular value decomposition (SVD) mode analysis and the (m,n) modes identification were presented. We also presented the SVD technique to analyze the tokamak magnetic fluctuations, time evolution of magnetohydrodynamics (MHD) modes, spatial structure of each time vector, and the energy content of each modes. We also considered different scenarios for plasma from steady-state to predisruption, complete disruption, creation of tearing modes, and finally magnetic islands.

Copyright © 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Horton, W. , 1999, “Drift Waves and Transport,” Rev. Mod. Phys., 71(3), p. 735. [CrossRef]
Wesson, J. A. , Ward, D. J. , and Rosenbluth, M. N. , 1990, “Negative Voltage Spike in Tokamak Disruptions,” Nucl. Fusion, 30(6), p. 1011. [CrossRef]
Schuller, F. , 1995, “Disruptions in Tokamaks,” Plasma Phys. Control Fusion, 37(11A), p. A135. [CrossRef]
Salar Elahi, A. , and Ghoranevis, M. , 2017, “A New Perspective on Synchrotron Radiation Applications: Runaway Electrons Studies Using a Hard X-Ray Detection in Tokamaks,” J. X-Ray Sci. Technol., 25(1), pp. 15–23. [CrossRef]
Kafi, M. , Salar Elahi, A. , Ghoranevis, M. , and Salem, M. K. , 2016, “A Confident Source of Hard X-Ray: Radiation From Tokamak Applicable for the Runaway Electrons Diagnosis,” J. Synchrotron Radiat., 23(5), pp. 1227–1231. [CrossRef] [PubMed]
Nagidokht, A. , and Salar Elahi, A. , 2016, “A Novel Design of Feedback Control System for Plasma Horizontal Position in IR-T1 Tokamak,” Fusion Eng. Des., 107, pp. 82–89. [CrossRef]
Salar Elahi, A. , and Ghoranevis, M. , 2016, “Low Dissipation With Normalized Flux Surfaces in 2-Dimensional Coordinate for IR-T1 Tokamak Using GSE Solution,” J. Inorg. Organomet. Polym. Mater., 26(4), pp. 829–833. [CrossRef]
Salar Elahi, A. , and Ghoranevis, M. , 2016, “Prevention of Plasma-Surface Interactions by Control of Plasma Equilibrium in Large Aspect Ratio Tokamaks,” J. Inorg. Organomet. Polym. Mater., 26(3), pp. 675–679. [CrossRef]
Mirmoeini, R. , and Salar Elahi, A. , 2016, “Analysis of Tokamak Plasma Confinement Modes Using the Fast Fourier Transformation,” Pramana J. Phys., 87(5), p. 81. [CrossRef]
Salar Elahi, A. , and Ghoranevis, M. , 2016, “Tokamak Coils Materials and Toroidal Field Ripples Calculation Using the Comsol Multiphysics,” J. Inorg. Organomet. Polym. Mater., 26(2), pp. 439–445. [CrossRef]
Salar Elahi, A. , and Ghoranevis, M. , 2016, “Magnetic Studies of Tokamak Plasma Equilibrium Based on Magnetic System Materials and Characteristics,” J. Inorg. Organomet. Polym. Mater., 26(2), pp. 467–471. [CrossRef]
Nagidokht, A. , and Salar Elahi, A. , 2016, “Feedback System Design for Plasma Horizontal Position Control in IR-T1 Tokamak,” J. Fusion Energy, 35(2), pp. 415–421. [CrossRef]
Nagidokht, A. , and Salar Elahi, A. , 2016, “Magnetic System and Equilibrium Reconstruction for ITER Using the GSE Solution and TEQ Code,” J. Inorg. Organomet. Polym. Mater., 26(1), pp. 172–177. [CrossRef]
Ghanbari, M. , and Salar Elahi, A. , 2016, “Controlling the Diffusion of Runaway Electrons by Safety Factor Changes in IR-T1 Tokamak,” J. Fusion Energy, 35(2), pp. 180–186. [CrossRef]
Elahi, S. H. , and Nabavi, A. , 2009, “A UWB LNA With Interference Rejection Using Enhanced-Q Active Inductor,” IEICE Electron. Express, 6(6), pp. 335–340. [CrossRef]
Elahi, S. H. , and Nabavi, A. , 2009, “Ultra-Wideband CMOS Low Noise Amplifier With Flat Gain,” IEICE Electron. Express, 6(10), pp. 630–637. [CrossRef]
Mimche, S. , Ahn, D. , Kiani, M. , Elahi, S. H. , Murray, K. , Easley, K. , and, Sokoloff, A. , 2016, “Tongue Implant for Assistive Technologies: Test of Migration, Tissue Reactivity and Impact on Tongue Function,” Arch. Oral Biol., 71, pp. 1–9. [CrossRef] [PubMed]

Figures

Grahic Jump Location
Fig. 8

The IP and MHD graphs in terms of time in stable condition

Grahic Jump Location
Fig. 9

Modes by means of SVD analysis period of 3–4 ms to obtain

Grahic Jump Location
Fig. 10

Circle shows the percentage of poloidal modes in the predisruption state

Grahic Jump Location
Fig. 11

Hamiltonian in the predisruption state plasma

Grahic Jump Location
Fig. 12

Contours are changing step by step in the predisruption state plasma

Grahic Jump Location
Fig. 7

Contours in the steady-state plasma

Grahic Jump Location
Fig. 6

Hamiltonian in the steady-state plasma

Grahic Jump Location
Fig. 5

Circle shows the percentage of poloidal modes in the steady-state

Grahic Jump Location
Fig. 4

Modes obtained by SVD analysis, for the period of 15–16 ms

Grahic Jump Location
Fig. 3

Contours are completely circle

Grahic Jump Location
Fig. 2

Hamiltonian without perturbation

Grahic Jump Location
Fig. 1

Position of poloidally array of 12 Mirnov coils

Grahic Jump Location
Fig. 13

Modes by means of SVD analysis period of 4–5 ms to obtain

Grahic Jump Location
Fig. 14

Circle shows the percentage of poloidal modes in the disruption state

Grahic Jump Location
Fig. 15

Hamiltonian in the disruption state plasma

Grahic Jump Location
Fig. 16

Contours are changing completely in the disruption state plasma

Tables

Errata

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In