全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:H. Sugama
来源:[J].Reviews of Modern Plasma Physics, 2017, Vol.1 (1)Springer
摘要:Collisional and turbulent transport processes in toroidal plasmas with large toroidal flows on the order of the ion thermal velocity are formulated based on the modern gyrokinetic theory. Governing equations for background and turbulent electromagnetic fields and gyrocenter ...
作者:... Y. Idomura , H. Sugama , T.-H. Watanabe
来源:[J].Computer Physics Communications(IF 3.078), 2010, Vol.181 (6), pp.1069-1076Elsevier
摘要:Abstract(#br)Two simulation codes that solve the drift-kinetic or gyrokinetic equation in toroidal plasmas are benchmarked by comparing the simulation results of neoclassical transport. The two codes are the drift-kinetic δf Monte Carlo code (FORTEC-3D) and the gyrokinetic f...
作者:T.‐H. Watanabe , H. Sugama
来源:[J].Transport Theory and Statistical Physics(IF 0.462), 2005, Vol.34 (3-5), pp.287-309Taylor & Francis
摘要:Abstract(#br)Vlasov and drift kinetic simulation methods based on the symplectic integrators are benchmarked for test problems on the linear and nonlinear Landau dampings and the Kelvin‐Helmholtz (K‐H) instability. The explicit symplectic integrator for the separable Hamilto...
作者:H. Sugama , K. Ichiguchi ...
来源:[J].Journal of Fusion Energy(IF 1), 1996, Vol.15 (1-2), pp.7-153Springer
摘要:Abstract(#br)The largest superconducting fusion machine, Large Helical Device (LHD), is now under construction in Japan and will begin operation in 1997. Design and construction of related R&D programs are now being carried out. The major radius of this machine is 3.9 m and the m...
作者:H. Sugama , M. Nunami ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (4)IOP
摘要:Turbulent transport in a high ion temperature discharge of the Large Helical Device (LHD) is investigated by means of electromagnetic gyrokinetic simulations, which include kinetic electrons, magnetic perturbations, and full geometrical effects. Including kinetic electrons enable...
作者:H. Sugama , K. Tanaka ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (6)IOP
摘要:We have investigated drift-wave instability and nonlinear turbulent transport in two configurations with different magnetic field structures by means of electromagnetic gyrokinetic simulations. Here, one is the neoclassically optimized Large Helical Device (LHD) plasma and the ot...
作者:... T.-H. Watanabe , H. Sugama , N. Nakajima
来源:[J].Journal of Plasma Physics(IF 0.755), 2015, Vol.81 (2)Cambridge U Press
摘要:Gyrokinetic simulations of electromagnetic turbulence in magnetically confined torus plasmas including tokamak and heliotron/stellarator are reviewed. Numerical simulation of turbulence in finite beta plasmas is an important task for predicting the performance of fusion reactors ...
作者:H. Sugama , N. Nakajima ...
来源:[J].Fusion Science and Technology(IF 0.517), 2010, Vol.58 (1), pp.269-276Taylor & Francis
摘要:Abstract(#br)This paper reviews how neoclassical (NC) transport analyses have been exploited to predict/understand the improved confinement achieved in the Large Helical Device (LHD), such as high-temperature and/or high-density regimes. Recent high-performance LHD plasmas have p...
作者:H. Sugama , T.-H. Watanabe ...
来源:[J].Fusion Science and Technology(IF 0.517), 2010, Vol.58 (1), pp.256-268Taylor & Francis
摘要:Abstract(#br)In this paper, microturbulence, turbulent transport, and related structure formation mechanisms in helical plasmas are discussed, with special attention to application to Large Helical Device (LHD) plasmas. The research frontier for the physics of anomalous transport...
作者:H. Sugama , A. Zhezhera ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (1)IOP
摘要:Achieving impurity and helium ash control is a crucial issue in the path towards fusion-grade magnetic confinement devices, and this is particularly the case of helical reactors, whose low-collisionality ion-root operation scenarios usually display a negative radial electric fiel...

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