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Dynamic modelling of local fuel inventory and desorption in the whole tokamak vacuum vessel for auto-consistent plasma-wall interaction simulations

Denis, J.; Bucalossi, J.; Ciraolo, G.; Hodille, E. A.; Pegourie, B.; Bufferand, H.; Grisolia, C.; Loarer, T.; Marandet, Y.; Serre, E.; Abduallev, S.; Abhangi, M.; Abreu, P.; Afzal, M.; Aggarwal, K. M.; Ahlgren, T.; Ahn, J. H.; Aho-Mantila, L.; Aiba, N.; Airila, M.; ... mehr

Abstract:
An extension of the SolEdge2D-EIRENE code package, named D-WEE, has been developed to add the dynamics of thermal desorption of hydrogen isotopes from the surface of plasma facing materials. To achieve this purpose, DWEE models hydrogen isotopes implantation, transport and retention in those materials. Before launching autoconsistent simulation (with feedback of D-WEE on SolEdge2D-EIRENE), D-WEE has to be initialised to ensure a realistic wall behaviour in terms of dynamics (pumping or fuelling areas) and fuel content. A methodology based on modelling is introduced to perform such initialisation. A synthetic plasma pulse is built from consecutive SolEdge2D-EIRENE simulations. This synthetic pulse is used as a plasma background for the D-WEE module. A sequence of plasma pulses is simulated with D-WEE to model a tokamak operation. This simulation enables to extract at a desired time during a pulse the local fuel inventory and the local desorption flux density which could be used as initial condition for coupled plasma-wall simulations. To assess the relevance of the dynamic retention behaviour obtained in the simulation, a confrontation to post-pulse experimental pressure measurement is performed. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000119823
Veröffentlicht am 28.05.2020
Originalveröffentlichung
DOI: 10.1016/j.nme.2019.03.019
Scopus
Zitationen: 2
Web of Science
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Physik (ITEP)
Institut für Angewandte Thermofluidik (IATF)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 05.2019
Sprache Englisch
Identifikator ISSN: 2352-1791
KITopen-ID: 1000119823
Erschienen in Nuclear materials and energy
Band 19
Seiten 550-557
Bemerkung zur Veröffentlichung Kollaboration: JET Contributors
Schlagwörter Plasma-wall interaction simulation, Recycling, Dynamics of hydrogen isotopes thermal desorption, Dynamic retention, Edge plasma physics
Nachgewiesen in Scopus
Web of Science
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