Simulations with current constraints of ELM- induced tungsten melt motion in ASDEX Upgrade.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F17%3A00478613" target="_blank" >RIV/61389021:_____/17:00478613 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1402-4896/aa8855" target="_blank" >http://dx.doi.org/10.1088/1402-4896/aa8855</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1402-4896/aa8855" target="_blank" >10.1088/1402-4896/aa8855</a>
Alternative languages
Result language
angličtina
Original language name
Simulations with current constraints of ELM- induced tungsten melt motion in ASDEX Upgrade.
Original language description
Melt motion simulations of recent ASDEX Upgrade experiments on transient-induced melting of a tungsten leading edge during ELMing H-mode are performed with the incompressible fluid dynamics code MEMOS 3D. The total current flowing through the sample was measured in these experiments providing an important constraint for the simulations since thermionic emission is considered to be responsible for the replacement current driving melt motion. To allow for a reliable comparison, the description of the space-charge limited regime of thermionic emission has been updated in the code. The effect of non-periodic aspects of the spatio-temporal heat flux in the temperature distribution and melt characteristics as well as the importance of current limitation are investigated. The results are compared with measurements of the total current and melt profile.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10300 - Physical sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physica Scripta
ISSN
0031-8949
e-ISSN
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Volume of the periodical
T170
Issue of the periodical within the volume
December
Country of publishing house
GB - UNITED KINGDOM
Number of pages
7
Pages from-to
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UT code for WoS article
000414120500006
EID of the result in the Scopus database
2-s2.0-85030833199