Presentations

International Conferences

1. M. Yagi, S. Tokunaga, T. Ueda, S.-I. Itoh, M. Azumi, K. Itoh, T. S. Hahm and P. H. Diamond, “Transport Simulation based on Global Turbulence Code”,
US-Japan JIFT Workshop on Integrated Modeling Integrated Modeling of Multi-Scale Physics in Fusion Plasmas II,
ORNL, TN, USA, January 2007

2. S. Tokunaga, S.-I. Itoh, M. Yagi, M. Azumi,
“Multi-scale transport simulation with ion temperature gradient driven drift wave turbulence” 12th Numerical Experirment of Tokamak meeting, Kyoto, Japan, March 2007 (Poster)

3. S. Tokunaga, M. Yagi, S.-I. Itoh and M. Azumi,
“Multi-scale transport simulation with ion temperature gradient driven drift wave turbulence”, The 2nd Japan-Korea Workshop on Theory and Simulation of Magnetic Fusion Plasmas with 6th Burning Plasma Simulation Initiative (BPSI) meeting, Fukuoka, Japan, August 2007 (Oral)

4. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Non-local turbulent effect on internal transport barrier collapse in reversed shear configuration”,
11th IAEA technical meeting on H-mode Physics and Transport Barriers,
L5-A1, Tsukuba, Japan, September 2007 (Oral)

5. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Non-local turbulent effect on internal transport barrier collapse in reversed shear configuration”,
11th IAEA technical meeting on H-mode Physics and Transport Barriers,
P5-13, Tsukuba, Japan, September 2007 (Poster)

6. S. Tokunaga, M. Yagi, S.-I. Itoh, K. Itoh,
9th Cross Strait Symposium, Pohang, Korea, November 2007 (Poster)

7. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Multi-scale transport simulation research with ion temperature gradient driven drift wave turbulence and toroidal momentum source”
13th Numerical Experirment of Tokamak meeting, Kyoto, Japan, March 2008 (Poster)

8. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh, 2nd ITER International Summer School, Fukuoka, Japan, July 2008 (Poster)

9. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Multi-scale transport simulation of internal transport barrier formation and collapse” 22nd IAEA Fusion Energy Conference,
TH/P8-19, Geneva, Switzerland, October 2008 (Poster)

10. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Toroidal momentum source profile effect on internal transport barrier collapse” 7th Burning Plasma Simulation Initiative, Fukuoka, Japan, December 2008 (Oral)

11. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Toroidal momentum source effect on turbulence evolution”
14th Numerical Experirment of Tokamak meeting, Kyoto, Japan, March 2009 (Poster)

12. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Safety factor profile dependence of turbulent structure formation in relevant to internal transport barrier relaxation”
4th IAEA-TM on the Theory of Plasma Instabilities, P2-01, Kyoto, Japan, May 2009 (Poster)

13. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Global Transport Simulation with Radial Electric Field Source”,
Asia Plasma and Fusion Association 2009 and Asia-Pacific Plasma Theory Conference 2009, Aomori, Japan, October 2009 (Poster)

14. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Global Transport Simulation with Radial Electric Field Source”,
US-Japan JIFT Workshop 2009 on “Advanced Simulation Methods in Plasma Physics”, Toki, Japan, December 2009 (Oral)

15. M. Yagi, S. Tokunaga, S.-I. Itoh and K. Itoh,
“Off-resonance mode and poloidal flow shear effect on ITB formation”,
US-Japan WS on Hierarchical Self-Organization of Turbulence and Flows in Plasmas, Oceans and Atmospheres, San Diego, US, March 2010

16. S. Tokunaga, M. Yagi, S.-I. Itoh, K. Itoh, S. S. Kim, Hogun Jhang, P. H. Diamond “Contrastive gyro-fluid simulation study of ITB formation”
5th Japan-Korea Workshop on 'Theory and Simulation of Magnetic Fusion Plasmas', Pohang, Korea, July 2010 (Oral)

17. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Multi-scale transport simulation of ITG turbulence in reversed shear plasma”, 1st WCI symposium, Jeju, Korea, September 2010 (Oral)

18. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh,
“Equilibrium flow shear and magnetic shear effect on zonal flow generation and toroidal mode coupling”
23rd IAEA Fusion Energy Conference,
TH/P8-05, Daejeon, Korea, October 2010 (Poster)

19. S. Tokunaga, M. Yagi, S.-I. Itoh and K. Itoh, P. H. Diamond,
“Analysis of interaction mechanism of off-resonant mode in reversed shear plasma”, 52nd Annual Meeting of the APS Division of Plasma Physics,
TP9.101, Chicago, IL, USA, November 2010 (Poster)

20. Hogun Jhang, S. Tokunaga, S. S. Kim, P. H. Diamond
“Role of intrinsic and external torque in ion profile de-stiffening and transport barrier formation: A gyrofluid simulation study”,
Joint EU-US Transport Task Force Workshop,
Mom II, San Diego, USA, April 2011

21. S. Tokunaga, Hogun Jhang, S. S. Kim, P. H. Diamond,
“Avalanching heat transport in steady state internal transport barriers with reversed magnetic shear”,
1st Asia Pacific Transport Working Group (APTWG) International Conference,
B-P9, Toki, Japan, June 2011 (Poster)

22. Hogun Jhang, S. Tokunaga, S. S. Kim, P. H. Diamond
“Role of intrinsic and external torque in the improvement of ion thermal confinement and internal transport barrier formation”
1st Asia Pacific Transport Working Group (APTWG) International Conference,
PLI-3, Toki, Japan, June 2011

23. Hogun Jhang, S. S. Kim, S. Tokunaga, P. H. Diamond
“Dynamics of and avalanching transport in internal transport barriers with reversed magnetic shear”
13th International Workshop on H-mode Physics and Transport Barriers,
P5. 12, Oxford, UK, October 2011

24. S. Tokunaga, Hogun Jhang, S. S. Kim, P. H. Diamond,
“Analysis of avalanches originated in q-minimum region”,
Japan-US JIFT workshop on "Hierarchical Self-Organization of Turbulence and flows in Plasmas, Oceans and Atmospheres",

Domestic Conferences

1. 徳永晋介、伊藤早苗、矢木雅敏、安積正史、 “イオン温度勾配駆動型ドリフト波乱流の非線形シミュレーション”、 第23回プラズマ・核融合学会年会、29aC30P, 筑波大、2006年11月 (Poster)

2. 徳永晋介、矢木雅敏、伊藤早苗、安積正史、 “グローバルITG乱流コードを用いた輸送シミュレーション”、 第五回核燃焼プラズマ統合コード研究会、九州大、2006年12月 (Oral)

3. 徳永晋介、伊藤早苗、矢木雅敏、安積正史、 “イオン温度勾配駆動型ドリフト波乱流の非線形シミュレーション”、 第10回プラズマ・核融合学会九州沖縄山口支部会、九州大、2006年12月 (Poster)

4. 矢木雅敏、徳永晋介、安積正史、伊藤早苗、伊藤公孝、
“Global ITGコードを用いた輸送シミュレーション”
プラズマ・核融合研究におけるHigh Performance Computingワークショップ、大型シミュレーシ ョン研究会、2007年1月

5. 徳永晋介、矢木雅敏、伊藤早苗、伊藤公孝、 “トカマクプラズマにおける内部輸送障壁形成と崩壊のマルチスケール輸送シミュレーション” 第57回理論応用力学講演会、日本学術会議、2008年6月 (Oral)

6. 徳永晋介、矢木雅敏、伊藤早苗、伊藤公孝 、
“Multi-scale transport simulation of internal transport barrier formation and collapse”、 第8回核燃焼プラズマ統合コード研究会、九州大、2009年12月 (Oral)