MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak

J. Dominguez-Palacios; M. Garcia-Munoz; M. Toscano-Jimenez; Y. Q. Liu; A. Mancini; D. J. Cruz-Zabala; J. W. Berkery; J. A. Labbate; J. Parisi; Y. Todo; A. Reyner-Viñolas; M. Podestà; E. Viezzer; P. Oyola; S. Futatani

doi:10.1088/1741-4326/ad7fd3

MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak

J. Dominguez-Palacios, M. Garcia-Munoz, M. Toscano-Jimenez, Y. Q. Liu, A. Mancini, D. J. Cruz-Zabala, J. W. Berkery, J. A. Labbate, J. Parisi, Y. Todo, A. Reyner-Viñolas, M. Podestà, E. Viezzer, P. Oyola, S. Futatani

PPPL Tokamak Expermntl Science

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2 Scopus citations

Abstract

Linear magnetohydrodynamic (MHD) simulations for the SMall Aspect Ratio Tokamak (SMART) have been carried out for the first time, for both positive (PT) and negative triangularity (NT) shaped plasmas using the MARS-F code. The MHD stability of projected SMART plasmas against internal kinks, infernal modes and edge peeling-ballooning modes have been analyzed for a wide range of realistic equilibria. A stabilization of internal kinks and infernal modes is observed when increasing the safety factor profile and reducing plasma beta. PT shaped plasmas are more stable against both internal kinks and infernal modes than their counterpart NT shaped plasmas. Toroidal flows have little impact on the MHD stability of the internal kinks, but they have a strong stabilizing effect on infernal modes, which can be further mitigated in NT shaped plasmas. The MHD stability of peeling-ballooning modes is reduced in NT shaped plasmas, as observed in conventional tokamaks.

Original language	English (US)
Article number	126028
Journal	Nuclear Fusion
Volume	64
Issue number	12
DOIs	https://doi.org/10.1088/1741-4326/ad7fd3
State	Published - Dec 2024

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics
Condensed Matter Physics

Keywords

MHD
SMART
negative triangularity

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10.1088/1741-4326/ad7fd3

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Dominguez-Palacios, J., Garcia-Munoz, M., Toscano-Jimenez, M., Liu, Y. Q., Mancini, A., Cruz-Zabala, D. J., Berkery, J. W., Labbate, J. A., Parisi, J., Todo, Y., Reyner-Viñolas, A., Podestà, M., Viezzer, E., Oyola, P., & Futatani, S. (2024). MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak. Nuclear Fusion, 64(12), Article 126028. https://doi.org/10.1088/1741-4326/ad7fd3

@article{5d21662d6af54e248decf404fe1c82ac,

title = "MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak",

abstract = "Linear magnetohydrodynamic (MHD) simulations for the SMall Aspect Ratio Tokamak (SMART) have been carried out for the first time, for both positive (PT) and negative triangularity (NT) shaped plasmas using the MARS-F code. The MHD stability of projected SMART plasmas against internal kinks, infernal modes and edge peeling-ballooning modes have been analyzed for a wide range of realistic equilibria. A stabilization of internal kinks and infernal modes is observed when increasing the safety factor profile and reducing plasma beta. PT shaped plasmas are more stable against both internal kinks and infernal modes than their counterpart NT shaped plasmas. Toroidal flows have little impact on the MHD stability of the internal kinks, but they have a strong stabilizing effect on infernal modes, which can be further mitigated in NT shaped plasmas. The MHD stability of peeling-ballooning modes is reduced in NT shaped plasmas, as observed in conventional tokamaks.",

keywords = "MHD, SMART, negative triangularity",

author = "J. Dominguez-Palacios and M. Garcia-Munoz and M. Toscano-Jimenez and Liu, \{Y. Q.\} and A. Mancini and Cruz-Zabala, \{D. J.\} and Berkery, \{J. W.\} and Labbate, \{J. A.\} and J. Parisi and Y. Todo and A. Reyner-Vi{\~n}olas and M. Podest{\`a} and E. Viezzer and P. Oyola and S. Futatani",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s). Published by IOP Publishing Ltd on behalf of the IAEA.",

year = "2024",

month = dec,

doi = "10.1088/1741-4326/ad7fd3",

language = "English (US)",

volume = "64",

journal = "Nuclear Fusion",

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Dominguez-Palacios, J, Garcia-Munoz, M, Toscano-Jimenez, M, Liu, YQ, Mancini, A, Cruz-Zabala, DJ, Berkery, JW, Labbate, JA, Parisi, J, Todo, Y, Reyner-Viñolas, A, Podestà, M, Viezzer, E, Oyola, P & Futatani, S 2024, 'MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak', Nuclear Fusion, vol. 64, no. 12, 126028. https://doi.org/10.1088/1741-4326/ad7fd3

TY - JOUR

T1 - MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak

AU - Dominguez-Palacios, J.

AU - Garcia-Munoz, M.

AU - Toscano-Jimenez, M.

AU - Liu, Y. Q.

AU - Mancini, A.

AU - Cruz-Zabala, D. J.

AU - Berkery, J. W.

AU - Labbate, J. A.

AU - Parisi, J.

AU - Todo, Y.

AU - Reyner-Viñolas, A.

AU - Podestà, M.

AU - Viezzer, E.

AU - Oyola, P.

AU - Futatani, S.

PY - 2024/12

Y1 - 2024/12

N2 - Linear magnetohydrodynamic (MHD) simulations for the SMall Aspect Ratio Tokamak (SMART) have been carried out for the first time, for both positive (PT) and negative triangularity (NT) shaped plasmas using the MARS-F code. The MHD stability of projected SMART plasmas against internal kinks, infernal modes and edge peeling-ballooning modes have been analyzed for a wide range of realistic equilibria. A stabilization of internal kinks and infernal modes is observed when increasing the safety factor profile and reducing plasma beta. PT shaped plasmas are more stable against both internal kinks and infernal modes than their counterpart NT shaped plasmas. Toroidal flows have little impact on the MHD stability of the internal kinks, but they have a strong stabilizing effect on infernal modes, which can be further mitigated in NT shaped plasmas. The MHD stability of peeling-ballooning modes is reduced in NT shaped plasmas, as observed in conventional tokamaks.

AB - Linear magnetohydrodynamic (MHD) simulations for the SMall Aspect Ratio Tokamak (SMART) have been carried out for the first time, for both positive (PT) and negative triangularity (NT) shaped plasmas using the MARS-F code. The MHD stability of projected SMART plasmas against internal kinks, infernal modes and edge peeling-ballooning modes have been analyzed for a wide range of realistic equilibria. A stabilization of internal kinks and infernal modes is observed when increasing the safety factor profile and reducing plasma beta. PT shaped plasmas are more stable against both internal kinks and infernal modes than their counterpart NT shaped plasmas. Toroidal flows have little impact on the MHD stability of the internal kinks, but they have a strong stabilizing effect on infernal modes, which can be further mitigated in NT shaped plasmas. The MHD stability of peeling-ballooning modes is reduced in NT shaped plasmas, as observed in conventional tokamaks.

KW - MHD

KW - SMART

KW - negative triangularity

UR - https://www.scopus.com/pages/publications/85206492546

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U2 - 10.1088/1741-4326/ad7fd3

DO - 10.1088/1741-4326/ad7fd3

M3 - Article

AN - SCOPUS:85206492546

SN - 0029-5515

VL - 64

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 12

M1 - 126028

ER -

MHD stability analysis against pressure and current-driven modes in the SMall Aspect Ratio Tokamak

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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