Speed-up of SOLPS-ITER code for tokamak edge modeling

被引：27

作者：

Kaveeva, E. ^{[1
]}

Rozhansky, V. ^{[1
]}

Senichenkov, I. ^{[1
]}

Veselova, I. ^{[1
]}

Voskoboynikov, S. ^{[1
]}

Sytova, E. ^{[1
,2
]}

Bonnin, X. ^{[2
]}

Coster, D. ^{[3
]}

机构：

[1] St Petersburg State Polytech Univ, Polytech Skaya 29, St Petersburg 195251, Russia

[2] ITER Org, Route Vinon Sur Verdon,CS 90 046, F-13067 St Paul Les Durance, France

[3] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany

来源：

NUCLEAR FUSION | 2018年 / 58卷 / 12期

基金：

俄罗斯科学基金会;

关键词：

SOLPS-ITER; tokamak edge modeling; modeling speed-up; ELECTRIC-FIELDS; PLASMA;

D O I：

10.1088/1741-4326/aae162

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Account of drifts and currents dramatically decreases the accessible time step for the integration of time dependent equations of SOLPS-ITER code for edge modeling. Running the code with sophisticated EIRENE Monte-Carlo model for neutrals and large number of fluid equations for multiple ion species makes the computation time unacceptably long. In the paper the main mechanisms leading to the time step limitations caused by drifts are discussed. Several methods of the suppression of these mechanisms are suggested and the results of numerical scheme tests with the applied corrections are presented. Application of these schemes decreases the time of convergence to steady state solution by more than an order of magnitude.

引用

页数：15

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