Original title: Particle-In-Cell Simulations of Shaped and Non-shaped Gaps in TEXTOR Test Limiter
Translated title: PIC simulace pravoúhlých a seříznutých štěrbin ve zkušebním limiteru tokamaku TEXTOR
Authors: Komm, M. ; Pekarek, Z. ; Pánek, Radomír ; Matveev, D. ; Kirschner, A. ; Litnovsky, A.
Document type: Papers
Conference/Event: Annual conference of doctoral students - WDS 2009 /18./, Prague (CZ), 2009-06-02 / 2009-06-05
Year: 2009
Language: eng
Abstract: [eng] [cze]
In this paper, we present results of Particle-In-Cell simulations of the plasma behavior in the vicinity of gaps in castellated plasma-facing components. We studied gaps in the test limiter of TEXTOR, which is a plasma-facing component designed for studies of impurity transport and fuel retention, mainly via hydrocarbon layer formation. The castellated limiter tiles have been analyzed using the postmortem techniques and first attempts of impurity transport modelling were done using the 3DGAP code [Matveev et al., 2008]. In order to improve the agreement between modeling and experiment, realistic plasma particle flux distribution needs to be included in the code. For this purpose, a series of PIC simulations for varying plasma conditions was performed by using the SPICE2 code [Dejarnac et al., 2008]. Plasma behavior inside the gaps is discussed and semi-empiric characterization via generic fitting procedure is proposed V tomto příspěvku prezentujeme výsledky Particle-In-Cell simulací chování plazmatu v blízkosti štěrbin segmentovaných PFC. Studovali jsme štěrbiny tokamaku TEXTOR, což je speciální PFC určený ke studiu transportu nečistot a zadržování tritia, hlavní díky usazování ve hydrokarbonových vrstvách. Štěrbiny byly experimentálně zkoumány post-mortem technikami a byly provedeny první pokusy o modelování depozice uhlíku za pomocí 3DGAP kodu. Za tímto účelem byla provedena série PIC simulací v kodu SPICE2. Chování plazmatu ve štěrbinách je diskutováno a je navržena polo-empirická charakterizace za pomocí obecné fitovací procedury.
Keywords: deposition; divertor; gap; limiter; PIC; SOL
Project no.: CEZ:AV0Z20430508 (CEP)
Host item entry: WDS’09 Proceedings of Contributed Papers, ISBN 978-80-7378-102-6

Institution: Institute of Plasma Physics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0180867

Permalink: http://www.nusl.cz/ntk/nusl-41081


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Research > Institutes ASCR > Institute of Plasma Physics
Conference materials > Papers