Screening of resonant magnetic perturbations by flows in tokamaks

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F12%3A00376782" target="_blank" >RIV/61389021:_____/12:00376782 - isvavai.cz</a>

Result on the web

<a href="http://iopscience.iop.org/0029-5515/52/5/054003/pdf/0029-5515_52_5_054003.pdf" target="_blank" >http://iopscience.iop.org/0029-5515/52/5/054003/pdf/0029-5515_52_5_054003.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0029-5515/52/5/054003" target="_blank" >10.1088/0029-5515/52/5/054003</a>

Result language

angličtina

Original language name

Screening of resonant magnetic perturbations by flows in tokamaks

Original language description

The non-linear reduced four-field RMHD model in cylindrical geometry was extended to include plasma rotation, neoclassical poloidal viscosity and two fluid diamagnetic effects. Interaction of the static resonant magnetic perturbations (RMPs) with the rotating plasmas in tokamaks was studied. The self-consistent evolution of equilibrium electric field due to RMP penetration is taken into account in the model. Generally, the screening effect increases for lower resistivity, stronger rotation and smaller RMP amplitude. Strong screening of central islands was observed limiting RMP penetration to the narrow region near the separatrix. However, at certain plasma parameters and due to the non-linear evolution of the radial electric field produced by RMPs, theExB rotation can be compensated by electron diamagnetic rotation locally. In this case, RMPs can penetrate and form magnetic islands. Typical plasma parameters and RMPs spectra on DIII-D, JET and ITER were used in modelling examples.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BL - Plasma physics and discharge through gases

OECD FORD branch

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Project

<a href="/en/project/GAP205%2F11%2F2341" target="_blank" >GAP205/11/2341: Control of edge localized modes in tokamaks by external magnetic perturbations</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

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

Name of the periodical

Nuclear Fusion

ISSN

0029-5515

e-ISSN

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Volume of the periodical

52

Issue of the periodical within the volume

5

Country of publishing house

AT - AUSTRIA

Number of pages

17

Pages from-to

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UT code for WoS article

000303982900004

EID of the result in the Scopus database

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