Results 101 to 110 of about 5,886 (235)

Physical origin of ultra-high neutral pressures in the Large Helical Device

Nuclear Fusion
Efficient particle exhaust remains a key challenge in magnetic confinement fusion, particularly in stellarators, where divertor neutral pressures are typically low. Recently, exceptionally high neutral pressures-up to 2.4 Pa-were measured in the divertor
U. Wenzel, G. Motojima, S. Masuzaki, M. Kobayashi, M. Goto, B. Peterson, M. Shoji   +6 more
doaj   +1 more source

Geometry effects on zonal flow dynamics and turbulent transport in optimized stellarators

Nuclear Fusion
Global gyrokinetic simulations find a strong suppression of ion temperature gradient (ITG) turbulence by zonal flows in stellarators optimized for neoclassical transport.
Haotian Chen, Xishuo Wei, Hongxuan Zhu, Zhihong Lin   +3 more
doaj   +1 more source

A perturbative multi-mode model with finite parallel electric field for fast-ion-driven Alfvén eigenmodes

Nuclear Fusion
Alfvén eigenmodes are of great interest in any fusion device as they can be excited by fast ions in the plasma. If the modes grow to large amplitudes, they can cause transport and redistribution of the fast ions, thus limiting fusion performance. To save
C. Slaby, A. Könies, R. Kleiber
doaj   +1 more source

A new continuous optimization method of standardized cubic permanent magnets for stellarators

Nuclear Fusion
Stellarator configurations can be realized using permanent magnets in combination with tokamak-like planar coils. From the perspective of engineering feasibility and cost-effectiveness, using standardized cubic permanent magnets with a finite number of ...
Xiangyu Zhang, Dehong Chen, Guosheng Xu, Zhiyuan Lu, Caoxiang Zhu, Liang Chen, Minyou Ye, Baonian Wan   +7 more
doaj   +1 more source

Innovative approaches towards an economic fusion reactor. [PDF]

Natl Sci Rev, 2020
Guo H, Thio FYC, Binderbauer MW, Buttery RJ, Jarboe TR, Maingi R, Sarff JS, Stangeby PC, Sutherland DA, Wade MR, Zarnstorff MC.   +10 more
europepmc   +1 more source

Designing stellarators using perpendicular permanent magnets [PDF]

, 2020
Caoxiang Zhu, M. C. Zarnstorff, D. Gates, A. Brooks   +3 more
openalex   +1 more source

Stellar ages and stellar rotation

, 2016
Stellar ages will play a big role in the next generation of astronomy. Useful to exoplaneteers and galactic archaeologists alike, this relatively under-exploited stellar property is currently limited by the precision of dating techniques. The work presented in this thesis contributes incrementally to a greater understanding of rotation period decay in ...
openaire   +2 more sources

Design of 3D equilibria and coils for steady-state operation of tokamaks

Nuclear Fusion
Inspired by the respective advantages of tokamaks and stellarators, we propose a quasi-axisymmetric (QA) tokamak-stellarator hybrid concept as a steady-state operation mode of standard tokamaks.
Yihui Liang, Yao Zhou, Fanghao Dong, Caoxiang Zhu, Guodong Yu, Yuansheng Zhao, Ge Dong   +6 more
doaj   +1 more source

Hydrogen isotope effect on self-organized electron internal transport barrier criticality and role of radial electric field in toroidal plasmas. [PDF]

Sci Rep, 2022
Kobayashi T, Shimizu A, Nishiura M, Ido T, Satake S, Tokuzawa T, Ii Tsujimura T, Nagaoka K, Ida K.   +8 more
europepmc   +1 more source

Proper orthogonal decomposition as an analytical approach to parametrisation of asymmetry and heat flux analysis in the Wendelstein 7-X stellarator [PDF]

Bartosz Zamorski, M. Ślęczka, M. Jakubowski, Yu Gao, A. Puig Sitjes, K. Czerski, the W7X Team   +6 more
openalex   +1 more source