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Study of MHD stability beta limit in LHD by hierarchy integrated simulation code
http://hdl.handle.net/10655/2562
http://hdl.handle.net/10655/256222d47b3e-f87a-418d-bde9-9cfb9468c0f7
| Item type | 研究報告書 / Research Paper(1) | |||||||||||||||||||||||||||||
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| 公開日 | 2010-02-05 | |||||||||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||||||||
| タイトル | Study of MHD stability beta limit in LHD by hierarchy integrated simulation code | |||||||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||||||||
| 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_18ws | |||||||||||||||||||||||||||||
| 資源タイプ | research report | |||||||||||||||||||||||||||||
| 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 |
"Sato, M.
× "Sato, M.
× Watanabe, K. Y.
× Nakamura, Y.
× Fukuyama, A.
× Murakami, S.
× Toda, S.
× Yokoyama, M.
× Funaba, H.
× Sakakibara, S.
× Ohdachi, S.
× Yamada, H.
× Nakajima, N."
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| 抄録 | ||||||||||||||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||||||||||||||
| 内容記述 | The beta limit by the ideal MHD instabilities (so-called “MHD stability beta limit”) for helical plasmas is studied by a hierarchy integrated simulation code. A numerical model for the effect of the MHD instabilities is introduced such that the pressure profile is flattened around the rational surface due to the MHD instabilities. The width of the flattening of the pressure gradient is determined from the width of the eigenmode structure of the MHD instabilities. It is assumed that there is the upper limit of the mode number of the MHD instabilities which directly affect the pressure gradient. The upper limit of the mode number is determined using a recent high beta experiment in the Large Helical Device (LHD). The flattening of the pressure gradient is calculated by the transport module in a hierarchy integrated code. The achievable volume averaged beta value in the LHD is expected to be beyond 6%. | |||||||||||||||||||||||||||||
| 書誌情報 |
en : Research Report NIFS-Series 発行日 2008-10-01 |
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| 報告書番号 | ||||||||||||||||||||||||||||||
| NIFS-919 | ||||||||||||||||||||||||||||||
| ISSN | ||||||||||||||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||||||||||||||
| 収録物識別子 | 0915-633X | |||||||||||||||||||||||||||||
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"Sato, M., Watanabe, K. Y., Nakamura, Y., Fukuyama, A., Murakami, S., Toda, S., Yokoyama, M., Funaba, H., Sakakibara, S., Ohdachi, S., Yamada, H., Nakajima, N.", 2008, Study of MHD stability beta limit in LHD by hierarchy integrated simulation code.
