Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET

A. Fil; E. Nardon; M. Hoelzl; G.T.A. Huijsmans; F. Orain; M. Becoulet; P. Beyer; G. Dif-Pradalier; R. Guirlet; H.R. Koslowski; M. Lehnen; J. Morales; S. Pamela; C. Passeron; C. Reux; F. Saint-Laurent

doi:10.1063/1.4922846

Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET

A. Fil, E. Nardon, M. Hoelzl, G.T.A. Huijsmans, F. Orain, M. Becoulet, P. Beyer, G. Dif-Pradalier, R. Guirlet, H.R. Koslowski, M. Lehnen, J. Morales, S. Pamela, C. Passeron, C. Reux, F. Saint-Laurent

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Abstract

JOREK 3D non-linear MHD simulations of a D2 Massive Gas Injection (MGI) triggered disruption in JET are presented and compared in detail to experimental data. The MGI creates an overdensity that rapidly expands in the direction parallel to the magnetic field. It also causes the growth of magnetic islands (m=n ¼ 2=1 and 3/2 mainly) and seeds the 1/1 internal kink mode. O-points of all island chains (including 1/1) are located in front of the MGI, consistently with experimental observations. A burst of MHD activity and a peak in plasma current take place at the same time as in the experiment. However, the magnitude of these two effects is much smaller than in the experiment. The simulated radiation is also much below the experimental level. As a consequence, the thermal quench is not fully reproduced. Directions for progress are identified. Radiation from impurities is a good candidate. VC 2015 AIP Publishing LLC.

Original language	English
Pages (from-to)	062509-1/18
Number of pages	18
Journal	Physics of Plasmas
Volume	22
DOIs	https://doi.org/10.1063/1.4922846
Publication status	Published - 2015

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Fil, A., Nardon, E., Hoelzl, M., Huijsmans, G. T. A., Orain, F., Becoulet, M., Beyer, P., Dif-Pradalier, G., Guirlet, R., Koslowski, H. R., Lehnen, M., Morales, J., Pamela, S., Passeron, C., Reux, C., & Saint-Laurent, F. (2015). Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET. Physics of Plasmas, 22, 062509-1/18. https://doi.org/10.1063/1.4922846

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title = "Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET",

abstract = "JOREK 3D non-linear MHD simulations of a D2 Massive Gas Injection (MGI) triggered disruption in JET are presented and compared in detail to experimental data. The MGI creates an overdensity that rapidly expands in the direction parallel to the magnetic field. It also causes the growth of magnetic islands (m=n ¼ 2=1 and 3/2 mainly) and seeds the 1/1 internal kink mode. O-points of all island chains (including 1/1) are located in front of the MGI, consistently with experimental observations. A burst of MHD activity and a peak in plasma current take place at the same time as in the experiment. However, the magnitude of these two effects is much smaller than in the experiment. The simulated radiation is also much below the experimental level. As a consequence, the thermal quench is not fully reproduced. Directions for progress are identified. Radiation from impurities is a good candidate. VC 2015 AIP Publishing LLC.",

author = "A. Fil and E. Nardon and M. Hoelzl and G.T.A. Huijsmans and F. Orain and M. Becoulet and P. Beyer and G. Dif-Pradalier and R. Guirlet and H.R. Koslowski and M. Lehnen and J. Morales and S. Pamela and C. Passeron and C. Reux and F. Saint-Laurent",

year = "2015",

doi = "10.1063/1.4922846",

language = "English",

volume = "22",

pages = "062509--1/18",

journal = "Physics of Plasmas",

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Fil, A, Nardon, E, Hoelzl, M, Huijsmans, GTA, Orain, F, Becoulet, M, Beyer, P, Dif-Pradalier, G, Guirlet, R, Koslowski, HR, Lehnen, M, Morales, J, Pamela, S, Passeron, C, Reux, C & Saint-Laurent, F 2015, 'Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET', Physics of Plasmas, vol. 22, pp. 062509-1/18. https://doi.org/10.1063/1.4922846

TY - JOUR

T1 - Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET

AU - Fil, A.

AU - Nardon, E.

AU - Hoelzl, M.

AU - Huijsmans, G.T.A.

AU - Orain, F.

AU - Becoulet, M.

AU - Beyer, P.

AU - Dif-Pradalier, G.

AU - Guirlet, R.

AU - Koslowski, H.R.

AU - Lehnen, M.

AU - Morales, J.

AU - Pamela, S.

AU - Passeron, C.

AU - Reux, C.

AU - Saint-Laurent, F.

PY - 2015

Y1 - 2015

N2 - JOREK 3D non-linear MHD simulations of a D2 Massive Gas Injection (MGI) triggered disruption in JET are presented and compared in detail to experimental data. The MGI creates an overdensity that rapidly expands in the direction parallel to the magnetic field. It also causes the growth of magnetic islands (m=n ¼ 2=1 and 3/2 mainly) and seeds the 1/1 internal kink mode. O-points of all island chains (including 1/1) are located in front of the MGI, consistently with experimental observations. A burst of MHD activity and a peak in plasma current take place at the same time as in the experiment. However, the magnitude of these two effects is much smaller than in the experiment. The simulated radiation is also much below the experimental level. As a consequence, the thermal quench is not fully reproduced. Directions for progress are identified. Radiation from impurities is a good candidate. VC 2015 AIP Publishing LLC.

AB - JOREK 3D non-linear MHD simulations of a D2 Massive Gas Injection (MGI) triggered disruption in JET are presented and compared in detail to experimental data. The MGI creates an overdensity that rapidly expands in the direction parallel to the magnetic field. It also causes the growth of magnetic islands (m=n ¼ 2=1 and 3/2 mainly) and seeds the 1/1 internal kink mode. O-points of all island chains (including 1/1) are located in front of the MGI, consistently with experimental observations. A burst of MHD activity and a peak in plasma current take place at the same time as in the experiment. However, the magnitude of these two effects is much smaller than in the experiment. The simulated radiation is also much below the experimental level. As a consequence, the thermal quench is not fully reproduced. Directions for progress are identified. Radiation from impurities is a good candidate. VC 2015 AIP Publishing LLC.

U2 - 10.1063/1.4922846

DO - 10.1063/1.4922846

M3 - Article

SN - 1070-664X

VL - 22

SP - 062509-1/18

JO - Physics of Plasmas

JF - Physics of Plasmas

ER -

Three-dimensional non-linear magnetohydrodynamic modeling of massive gas injection triggered disruptions in JET

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