Accelerating the convergence of a tokamak modeling code with Aitken’s method

Haelterman, Rob; Eester, D. Van

doi:10.1016/j.cpc.2015.05.018

Cited by 4 publications

(2 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[13,33,46,60,61,76,80,81,9 1,92]), plasma physics (e.g. [55,56]), to name but a few. In this paper we will focus solely on fluid-structure interactions.…”

Section: Introductionmentioning

confidence: 99%

Improving the performance of the partitioned QN-ILS procedure for fluid–structure interaction problems: Filtering

Haelterman

Bogaers

Scheufele

et al. 2016

Computers & Structures

Self Cite

View full text Add to dashboard Cite

“…[13,33,46,60,61,76,80,81,9 1,92]), plasma physics (e.g. [55,56]), to name but a few. In this paper we will focus solely on fluid-structure interactions.…”

Section: Introductionmentioning

confidence: 99%

Improving the performance of the partitioned QN-ILS procedure for fluid–structure interaction problems: Filtering

Haelterman

Bogaers

Scheufele

et al. 2016

Computers & Structures

Self Cite

View full text Add to dashboard Cite

“…The dashed vertical lines on Figures 1a and 1b correspond to the location of the q = 1 surface, inferred from the inversion radius of the sawtooth crashes measured by the fast ECE diagnostics. To have a first estimate of the fast ion orbits and to assess whether they remain inside the q = 1 region, a simple orbit solver [37] that imposes two constants of motion (energy and magnetic moment) and draws the contour plots of the toroidal angular momentum (third constant of motion) was used. The results are shown in figure 1(c) for two values of the fast ion energy, E = 0.1 MeV and E = 1.0 MeV, for ions accelerated tangentially to the ion-cyclotron resonance in a magnetic surface close to the maximum ICRF absorption.…”

Section: Introductionmentioning

confidence: 99%

Sawtooth control with modulated ICRH in JET-ILW H-mode plasmas

et al. 2020

View full text Add to dashboard Cite

Sawtooth pacing with modulated ion-cyclotron resonance heating (ICRH) has been demonstrated to be very efficient in JET-ILW L-mode plasmas (Lerche et al 2017 Nucl. Fusion 57 036027, Lennholm et al 2017 Fusion Eng. Des. 123 535–40), where the main heat source in the plasma centre is provided by the RF accelerated minority ions. In H-mode plasmas with substantial neutral beam injection power, this technique is more challenging since the fast beam particles have a stabilizing effect on the sawteeth, making it more difficult to trigger a sawtooth crash by removing the additional fast particle sources induced by ICRH inside the q = 1 surface. New results from JET-ILW experiments, showing that this technique can also be used in high power H-modes with considerable success will be presented, with focus on the sawtooth triggering efficiency at different pacing frequencies and plasma parameters, both during the flat-top phase of the discharges and during the H-mode exit and plasma termination.

show abstract