A Finite Element Versus Analytical Approach to the Solution of the Current Diffusion Equation in Tokamaks

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00489526" target="_blank" >RIV/61389021:_____/18:00489526 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1109/TPS.2018.2811858" target="_blank" >http://dx.doi.org/10.1109/TPS.2018.2811858</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TPS.2018.2811858" target="_blank" >10.1109/TPS.2018.2811858</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A Finite Element Versus Analytical Approach to the Solution of the Current Diffusion Equation in Tokamaks

Popis výsledku v původním jazyce

This paper deals with two efficient approaches for solving the current diffusion equation (CDE), which governs current diffusion through the conductive plasma inside a tokamak and compares them to CRONOS tokamak simulation suite, as well. Namely, CDE is solved via the finite-element method (FEM) and an analytical technique, respectively, and the obtained results are subsequently compared with the solution obtained from the state-of-the-art CRONOS suite with finite-difference calculations. The tradeoff between different approaches has been undertaken. The results obtained via the FEM approach (with Hermite basis function, in particular) show very good agreement with the CRONOS results, while also providing the stability of the solution. On the other hand, the results obtained via the analytical solution clearly demonstrate a good agreement with the numerical results in the edge region, which makes it very useful for various applications.

Název v anglickém jazyce

A Finite Element Versus Analytical Approach to the Solution of the Current Diffusion Equation in Tokamaks

Popis výsledku anglicky

This paper deals with two efficient approaches for solving the current diffusion equation (CDE), which governs current diffusion through the conductive plasma inside a tokamak and compares them to CRONOS tokamak simulation suite, as well. Namely, CDE is solved via the finite-element method (FEM) and an analytical technique, respectively, and the obtained results are subsequently compared with the solution obtained from the state-of-the-art CRONOS suite with finite-difference calculations. The tradeoff between different approaches has been undertaken. The results obtained via the FEM approach (with Hermite basis function, in particular) show very good agreement with the CRONOS results, while also providing the stability of the solution. On the other hand, the results obtained via the analytical solution clearly demonstrate a good agreement with the numerical results in the edge region, which makes it very useful for various applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/8D15001" target="_blank" >8D15001: Project ID 633053 - EUROfusion</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Transactions on Plasma Science

ISSN

0093-3813

e-ISSN

—

Svazek periodika

46

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

1027-1034

Kód UT WoS článku

000429969500024

EID výsledku v databázi Scopus

2-s2.0-85044339345