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Simple Core‐SOL‐Divertor Model To Investigate Plasma Operational Space
Author(s) -
Hiwatari R.,
Kuzuyama Y.,
Hatayama A.,
Okano K.,
Zhu S.,
Tomita Y.
Publication year - 2004
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.200410011
Subject(s) - divertor , plasma , scaling , tokamak , core (optical fiber) , oscillation (cell signaling) , physics , enhanced data rates for gsm evolution , flux (metallurgy) , computational physics , mechanics , statistical physics , materials science , nuclear physics , computer science , chemistry , optics , mathematics , telecommunications , biochemistry , geometry , metallurgy
We develop a simple Core‐SOL‐Divertor (C‐S‐D) model to investigate the core and edge operational space. To construct the integrated C‐S‐D model, 0D core plasma model of ITER physics guidelines and two‐point SOLdivertor model are applied. To get the reasonable boundary condition at the core‐edge interface, we investigate the particle balance for the divertor, SOL, and core plasma region, respectively. Moreover, we apply the C‐S‐D model to LH transition phase of ITER and compare with the scaling model, which consists of the two‐point model and the SOL density scaling law. According to the above comparison, we find that the particle flux across the separatrix should be applied for the boundary condition in case of the transition phenomena. In addition, the oscillation of the divertor density at the LH transition is predicted. This oscillation has a possibility to have an effect on the divertor operation of ITER. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)