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Ishizawa, Akihiro*; Idomura, Yasuhiro; Imadera, Kenji*; Kasuya, Naohiro*; Kanno, Ryutaro*; Satake, Shinsuke*; Tatsuno, Tomoya*; Nakata, Motoki*; Nunami, Masanori*; Maeyama, Shinya*; et al.
Purazuma, Kaku Yugo Gakkai-Shi, 92(3), p.157 - 210, 2016/03
The high-performance computer system Helios which is located at The Computational Simulation Centre (CSC) in The International Fusion Energy Research Centre (IFERC) started its operation in January 2012 under the Broader Approach (BA) agreement between Japan and the EU. The Helios system has been used for magnetised fusion related simulation studies in the EU and Japan and has kept high average usage rate. As a result, the Helios system has contributed to many research products in a wide range of research areas from core plasma physics to reactor material and reactor engineering. This project review gives a short catalogue of domestic simulation research projects. First, we outline the IFERC-CSC project. After that, shown are objectives of the research projects, numerical schemes used in simulation codes, obtained results and necessary computations in future.
Furukawa, Masaru*; Matsuyama, Akinobu; Okawa, Yushiro*
Plasma and Fusion Research (Internet), 11, p.1303003_1 - 1303003_4, 2016/02
Honda, Mitsuru; Satake, Shinsuke*; Suzuki, Yasuhiro*; Yoshida, Maiko; Hayashi, Nobuhiko; Kamiya, Kensaku; Matsuyama, Akinobu; Shinohara, Koji; Matsunaga, Go; Nakata, Motoki; et al.
Nuclear Fusion, 55(7), p.073033_1 - 073033_11, 2015/07
Times Cited Count：9 Percentile：37.99(Physics, Fluids & Plasmas)Matsuyama, Akinobu
Purazuma, Kaku Yugo Gakkai-Shi, 91(3), p.204 - 208, 2015/03
no abstracts in English
Nuga, Hideo; Matsuyama, Akinobu; Yagi, Masatoshi; Fukuyama, Atsushi*
Plasma and Fusion Research (Internet), 10, p.1203006_1 - 1203006_2, 2015/01
Matsuyama, Akinobu; Yagi, Masatoshi; Kagei, Yasuhiro; Nakajima, Noriyoshi*
Nuclear Fusion, 54(12), p.123007_1 - 123007_14, 2014/12
Times Cited Count：14 Percentile：53.61(Physics, Fluids & Plasmas)Honda, Mitsuru; Satake, Shinsuke*; Suzuki, Yasuhiro*; Matsunaga, Go; Shinohara, Koji; Yoshida, Maiko; Matsuyama, Akinobu; Ide, Shunsuke; Urano, Hajime
Nuclear Fusion, 54(11), p.114005_1 - 114005_14, 2014/11
Times Cited Count：16 Percentile：58.47(Physics, Fluids & Plasmas)Aiba, Nobuyuki; Hirota, Makoto*; Matsuyama, Akinobu; Shiraishi, Junya; Bierwage, A.
Proceedings of 25th IAEA Fusion Energy Conference (FEC 2014) (CD-ROM), 8 Pages, 2014/10
A mechanism exciting magnetohydrodynamic (MHD) instabilities in rotating tokamak plasmas is found numerically for the first time. This mechanism is the interplay between a resistive wall mode (RWM) and a stable MHD mode. When the plasma has a stable discrete eigenmode, a reversed shear Alfv
n eigenmode (RSAE) for example, a MHD mode is destabilized when plasma equilibrium rotation frequency is similar to the frequency of this stable eigenmode in a static equilibrium. This destabilization is also observed even when the eigenmode couples with Alfvn continua. This result suggests that for steady state high beta tokamaks, like DEMO, it is necessary to shape the safety factor profile in such a way that no stable eigenmode exists in the band of rotation frequency.
Honda, Mitsuru; Satake, Shinsuke*; Suzuki, Yasuhiro*; Yoshida, Maiko; Hayashi, Nobuhiko; Kamiya, Kensaku; Matsuyama, Akinobu; Shinohara, Koji; Matsunaga, Go; Nakata, Motoki; et al.
Proceedings of 25th IAEA Fusion Energy Conference (FEC 2014) (CD-ROM), 8 Pages, 2014/10
Yagi, Masatoshi; Matsuyama, Akinobu; Miyato, Naoaki; Takizuka, Tomonori*
Contributions to Plasma Physics, 54(4-6), p.363 - 367, 2014/06
Times Cited Count：0 Percentile：0.00(Physics, Fluids & Plasmas)Nakata, Motoki; Matsuyama, Akinobu; Aiba, Nobuyuki; Maeyama, Shinya; Nunami, Masanori*; Watanabe, Tomohiko*
Plasma and Fusion Research (Internet), 9, p.1403029_1 - 1403029_12, 2014/04
A local gyrokinetic Vlasov simulation code GKV is extended to incorporate realistic tokamak equilibria including up-down asymmetry, which are produced by a free-boundary 2D Grad-Shafranov equation solver MEUDAS. The developed codes have been verified by a cross-code benchmark test using Cyclone-base-case like MHD equilibrium, where good agreement in the dispersion relation of ion temperature gradient (ITG) driven mode has been confirmed. The extended GKV is applied to two types of shaped plasmas expected in JT-60SA tokamak devices, i.e., ITER-like and highly-shaped plasmas, and ITG-mode stability and residual zonal-flow level are investigated. Through the detailed comparisons, more favorable stability properties against the ITG mode are revealed for the highly-shaped case, where the lower ITG-mode growth rate and higher residual zonal-flow levels compared to the ITER-like case are identified.
Yagi, Masatoshi; Miyato, Naoaki; Matsuyama, Akinobu; Takizuka, Tomonori*
Plasma and Fusion Research (Internet), 9, p.3403030_1 - 3403030_4, 2014/04
Matsuyama, Akinobu; Yagi, Masatoshi; Kagei, Yasuhiro*
JPS Conference Proceedings (Internet), 1, p.015037_1 - 015037_4, 2014/03
no abstracts in English
Matsuyama, Akinobu; Yagi, Masatoshi
Plasma and Fusion Research (Internet), 8, p.1403170_1 - 1403170_6, 2013/12
Matsuyama, Akinobu; Yagi, Masatoshi; Kagei, Yasuhiro*
no journal, ,
no abstracts in English
Yagi, Masatoshi; Matsuyama, Akinobu; Takizuka, Tomonori*
no journal, ,
no abstracts in English
Yagi, Masatoshi; Matsuyama, Akinobu; Takizuka, Tomonori*
no journal, ,
no abstracts in English
Yagi, Masatoshi; Miyato, Naoaki; Matsuyama, Akinobu; Takizuka, Tomonori*
no journal, ,
Matsuyama, Akinobu
no journal, ,
no abstracts in English
Matsuyama, Akinobu; Kagei, Yasuhiro; Yagi, Masatoshi
no journal, ,
no abstracts in English
