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Integrated modelling and validation of the physics models using tokamak experiments in EU and Japan for high beta tokamak physics
https://repo.qst.go.jp/records/73278
https://repo.qst.go.jp/records/73278c51c04a3-21a3-466d-b9b7-07cc4efc901b
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-03-09 | |||||
| タイトル | ||||||
| タイトル | Integrated modelling and validation of the physics models using tokamak experiments in EU and Japan for high beta tokamak physics | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Ide, Shunsuke
× Ide, Shunsuke× JT-60SA, Research Unit the× 井手 俊介 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Towards realization of a steady-state tokamak reactor, establishing operational scenario with a plasma of high normalized beta (N) and high bootstrap current fraction (fBS) is a key issue. Modelling and simulation of high N tokamak plasmas is one of the most challenging problems in this domain of fusion research. Because various physics processes characterizing such plasmas exist and are tightly related to each other. In particular the formation and sustainment of an internal transport barrier (ITB) would play a key role and is strongly correlated with the current profile that is dominated by the bootstrap current driven in the ITB region. Validity of the physics model of the energy transport is a key for more reliable simulation. So called integrated modelling codes, CRONOS developed in the EU and TOPICS developed in Japan, along with several transport models have been validated against each other using experimental data obtained both in JET and JT-60U in a wide extent in the plasma domain from H-mode to ITB plasmas. Use of validated physics model is necessary but not enough to simulate complicated system such as high N plasmas. Because the integrated modelling code should treat physics models appropriately and as self-consistent as possible. Especially, treatment of the radial electric field (Er) is important. TOPICS has been developed so as can treat Er and other physics module self-consistently. Therefore it can include 3D magnetic field effect to evaluate the toroidal rotation (Vt) more accurately. Use of validate transport model and self-consistent simulation platform enables us to predict future plasmas more reliably. For example, effect of the Vt profile on Resistive Wall Mode stability, which has been also improved by treating kinetic effect more rigorously in the RWM modelling in the RWMac code. Coupling of the core integrated code and the SOL/Divertor code, SONIC, is developing for evaluation of the impurity accumulation. Application of validated transport model and self-consistent simulation platform, performed both in EU also using other codes such as JINTRAC ASTRA and so forth and in Japan, on prediction of JT-60SA plasmas, especially of high N will be presented to highlight progress in integrated modelling. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The 43rd European Physical Society Conference on Plasma Physics | |||||
| 発表年月日 | ||||||
| 日付 | 2016-07-06 | |||||
| 日付タイプ | Issued | |||||
