2017
DOI: 10.1088/1741-4326/aa6e89
|View full text |Cite
|
Sign up to set email alerts
|

On the correlation between ‘non-local’ effects and intrinsic rotation reversals in Alcator C-Mod

Abstract: Contemporary predictive models for heat and particle transport in tokamak plasmas are based on the assumption that local fluxes can be described in terms of local plasma parameters, where electromagnetic drift-wave-type turbulence is driven by local gradients and results in cross-field transport. The question of whether or not transport could be dominated by non-local terms in certain circumstances is essential for our understanding of transport in magnetically confined plasmas, and critical for developing pre… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

2
17
0

Year Published

2018
2018
2024
2024

Publication Types

Select...
7

Relationship

2
5

Authors

Journals

citations
Cited by 8 publications
(19 citation statements)
references
References 47 publications
2
17
0
Order By: Relevance
“…Because the background equilibrium predicted by the simulation (see Fig. 3a) is at a lower collisionality due to the overpredicted electron temperature for fixed density, it causes the simulated inversion to achieve higher peak values before decay, and to last longer, consistent with experimental trends [29]. The edge temperature drop is overpredicted, outside error bars, in the simulations.…”
supporting
confidence: 64%
See 3 more Smart Citations
“…Because the background equilibrium predicted by the simulation (see Fig. 3a) is at a lower collisionality due to the overpredicted electron temperature for fixed density, it causes the simulated inversion to achieve higher peak values before decay, and to last longer, consistent with experimental trends [29]. The edge temperature drop is overpredicted, outside error bars, in the simulations.…”
supporting
confidence: 64%
“…1c) are perturbed by the impurity injection. Past work showed that the size of the edge perturbation does not affect the core temperature inversion in Alcator C-Mod [29]. At this plasma current, the controlled density ramp covers the transition from "non-local" to "standard" transport behavior (disappearance of temperature inversion) in both electron and ion channels, as shown in Fig.…”
mentioning
confidence: 57%
See 2 more Smart Citations
“…A fast increase of the central electron temperature caused by the edge cooling in Ohmic heating (OH) plasmas, the so-called non-local heat transport (NLT) [1] is one of these challenging issues. NLT was first observed in the TEXT tokamak 23 years ago, and in many fusion devices afterwards (TFTR [2], RTP [3], ASDEX UPGRAGE [4], Tore Supra [5], JET [6], LHD [7][8][9], HL-2A [10][11][12], Alcator C-Mod [13][14][15], KSTAR [16], J-TEXT [17], and EAST [18]). NLT phenomenon shows that the limitation of transport theory based on traditional local transport model.…”
mentioning
confidence: 99%