Development of new matching method for boundary-layer problem in fusion plasmas
| Project/Area Number |
23760805
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nuclear fusion studies
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| Research Institution | Tottori University (2012-2015)
The University of Tokyo (2011) |
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Principal Investigator |
Furukawa Masaru 鳥取大学, 工学(系)研究科(研究院), 准教授 (80360428)
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| Project Period (FY) |
2011-04-28 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | プラズマ・核融合 / 境界層 / 数理物理 / 特異摂動 / 波動 |
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| Outline of Final Research Achievements |
We have developed and extended a new solution method for resistive MagnetoHydroDynamics (MHD) stability problems in magnetized plasmas. The new matching method is applicable to situations where the matched asymptotic expansion (boundary-layer theory), one of the conventional solution methods, cannot apply or is difficult to apply actually. We have extended our previous studies on the new method to (1) stability problem of axisymmetric toroidal plasmas and (2) weakly nonlinear evolution of cylindrical plasmas. We have not only formulated the theory but also developed the numerical codes. Furthermore, we have extended the method for applying a model including finite Larmor radius effects. We have also studied a solution method for stationary states of ideal MHD, which is used for outer solution of the new matching method, on the basis of the noncanonical Hamiltonian theory.
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Report
(6 results)
Research Products
(59 results)
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[Presentation] Pressure Driven MHD Instabilities in Intrinsic and Externally Enhanced Magnetic Stochastic Region of LHD2014
Author(s)
S. Ohdachi, Y. Suzuki, H. Tsuchiya, K. Y. Watanabe, S. Sakakibara, Y. Narushima, X. D. Du, T. F. Ming, M. Furukawa, K. Toi, H. Yamada and LHD Experiment Group
Organizer
25th IAEA Fusion Energy Conference
Place of Presentation
Saint Petersburg, Russia
Year and Date
2014-10-13 – 2014-10-18
Related Report
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[Presentation] Experimental observation of response to resonant magnetic perturbation and its hysteresis in LHD2014
Author(s)
Y. Narushima, S. Sakakibara, S. Ohdachi, Y. Suzuki, K.Y. Watanabe, S. Nishimura, M. Furukawa, Y. Takemura, K. Ida, M. Yoshinuma, I. Yamada, LHD experiment Group
Organizer
25th IAEA Fusion Energy Conference
Place of Presentation
Saint Petersburg, Russia
Year and Date
2014-10-13 – 2014-10-18
Related Report
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