Effect of 3D magnetic perturbations on the plasma rotation in ASDEX Upgrade

A F Martitsch, S V Kasilov, W Kernbichler, G Kapper, C G Albert, M F Heyn, H M Smith, E Strumberger, S Fietz, W Suttrop, M Landreman, the ASDEX Upgrade Team, the EUROfusion MST1 Team

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

The toroidal torque due to the non-resonant interaction with external magnetic perturbations (TF ripple and perturbations from ELM mitigation coils) in ASDEX Upgrade is modelled with help of the NEO-2 and SFINCS codes and compared to semi-analytical models. It is shown that almost all non-axisymmetric transport regimes contributing to neoclassical toroidal viscosity (NTV) are realized within a single discharge at different radial positions. The NTV torque is obtained to be roughly a quarter of the NBI torque. This indicates the presence of other important momentum sources. The role of these momentum sources and possible integral torque balance measurements are briefly discussed.
Originalspracheenglisch
Seiten (von - bis)074007
Seitenumfang13
FachzeitschriftPlasma physics and controlled fusion
Jahrgang58
Ausgabenummer7
DOIs
PublikationsstatusVeröffentlicht - 3 Jun 2016

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torque
Torque
Plasmas
perturbation
Momentum
Viscosity
viscosity
near Earth objects
momentum
ripples
Analytical models
coils
interactions

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Effect of 3D magnetic perturbations on the plasma rotation in ASDEX Upgrade. / Martitsch, A F; Kasilov, S V; Kernbichler, W; Kapper, G; Albert, C G; Heyn, M F; Smith, H M; Strumberger, E; Fietz, S; Suttrop, W; Landreman, M; the ASDEX Upgrade Team; the EUROfusion MST1 Team.

in: Plasma physics and controlled fusion, Jahrgang 58, Nr. 7, 03.06.2016, S. 074007.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Martitsch, AF, Kasilov, SV, Kernbichler, W, Kapper, G, Albert, CG, Heyn, MF, Smith, HM, Strumberger, E, Fietz, S, Suttrop, W, Landreman, M, the ASDEX Upgrade Team & the EUROfusion MST1 Team 2016, 'Effect of 3D magnetic perturbations on the plasma rotation in ASDEX Upgrade' Plasma physics and controlled fusion, Jg. 58, Nr. 7, S. 074007. https://doi.org/10.1088/0741-3335/58/7/074007
Martitsch, A F ; Kasilov, S V ; Kernbichler, W ; Kapper, G ; Albert, C G ; Heyn, M F ; Smith, H M ; Strumberger, E ; Fietz, S ; Suttrop, W ; Landreman, M ; the ASDEX Upgrade Team ; the EUROfusion MST1 Team. / Effect of 3D magnetic perturbations on the plasma rotation in ASDEX Upgrade. in: Plasma physics and controlled fusion. 2016 ; Jahrgang 58, Nr. 7. S. 074007.
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abstract = "The toroidal torque due to the non-resonant interaction with external magnetic perturbations (TF ripple and perturbations from ELM mitigation coils) in ASDEX Upgrade is modelled with help of the NEO-2 and SFINCS codes and compared to semi-analytical models. It is shown that almost all non-axisymmetric transport regimes contributing to neoclassical toroidal viscosity (NTV) are realized within a single discharge at different radial positions. The NTV torque is obtained to be roughly a quarter of the NBI torque. This indicates the presence of other important momentum sources. The role of these momentum sources and possible integral torque balance measurements are briefly discussed.",
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AU - Martitsch, A F

AU - Kasilov, S V

AU - Kernbichler, W

AU - Kapper, G

AU - Albert, C G

AU - Heyn, M F

AU - Smith, H M

AU - Strumberger, E

AU - Fietz, S

AU - Suttrop, W

AU - Landreman, M

AU - the ASDEX Upgrade Team

AU - the EUROfusion MST1 Team

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Y1 - 2016/6/3

N2 - The toroidal torque due to the non-resonant interaction with external magnetic perturbations (TF ripple and perturbations from ELM mitigation coils) in ASDEX Upgrade is modelled with help of the NEO-2 and SFINCS codes and compared to semi-analytical models. It is shown that almost all non-axisymmetric transport regimes contributing to neoclassical toroidal viscosity (NTV) are realized within a single discharge at different radial positions. The NTV torque is obtained to be roughly a quarter of the NBI torque. This indicates the presence of other important momentum sources. The role of these momentum sources and possible integral torque balance measurements are briefly discussed.

AB - The toroidal torque due to the non-resonant interaction with external magnetic perturbations (TF ripple and perturbations from ELM mitigation coils) in ASDEX Upgrade is modelled with help of the NEO-2 and SFINCS codes and compared to semi-analytical models. It is shown that almost all non-axisymmetric transport regimes contributing to neoclassical toroidal viscosity (NTV) are realized within a single discharge at different radial positions. The NTV torque is obtained to be roughly a quarter of the NBI torque. This indicates the presence of other important momentum sources. The role of these momentum sources and possible integral torque balance measurements are briefly discussed.

U2 - 10.1088/0741-3335/58/7/074007

DO - 10.1088/0741-3335/58/7/074007

M3 - Article

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SP - 074007

JO - Plasma physics and controlled fusion

JF - Plasma physics and controlled fusion

SN - 0741-3335

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