Results 51 to 60 of about 1,911,396 (184)

Optimization of stellarator configurations combining omnigenity and piecewise omnigenity

Nuclear Fusion
We present a method for optimizing stellarator configurations that combine omnigenity and piecewise omnigenity (pwO). Within the OOPS optimization framework (Liu et al 2025 https://arxiv.org/abs/2502.09350 ), we introduce a mapping technique that can ...
Hengqian Liu, Guodong Yu, José Luis Velasco, Caoxiang Zhu   +3 more
doaj   +1 more source

Greedy permanent magnet optimization

Nuclear Fusion, 2023
A number of scientific fields rely on placing permanent magnets in order to produce a desired magnetic field. We have shown in recent work that the placement process can be formulated as sparse regression.
Alan A. Kaptanoglu, Rory Conlin, Matt Landreman   +2 more
doaj   +1 more source

MHD Convection with Joule Heating and Internal Heat Generation in a Two‐Layer Discretely Heated Chamber Partly Filled with Porous Medium

International Journal of Energy Research, Volume 2024, Issue 1, 2024.
The present research presents an innovative approach by integrating magnetohydrodynamic (MHD) flow with resistive heating, integrating a partly permeable layer and interior heat production to scrutinize natural convective flow within a square domain. It also examines both straight and wavy interfaces between the porous and fluid domains.
Nahid Hasan, Niloy Deb, Sumon Saha, Mohamed Zbair   +3 more
wiley   +1 more source

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

ParaStell: parametric modeling and neutronics support for stellarator fusion power plants

Frontiers in Nuclear Engineering
The three-dimensional variation inherent to stellarator geometries and fusion sources motivates three-dimensional modeling to obtain accurate results from computational modeling in support of design and analysis of first wall, blanket, and shield (FWBS ...
Connor Moreno, Aaron Bader, Aaron Bader, Paul Wilson   +3 more
doaj   +1 more source

Direct stellarator coil design using global optimization: application to a comprehensive exploration of quasi-axisymmetric devices [PDF]

Many stellarator coil design problems are plagued by multiple minima, where the locally optimal coil sets can sometimes vary substantially in performance.
Giuliani, Andrew
core   +1 more source

Bounce-averaged Fokker-Planck code for stellarator transport [PDF]

, 1985
A computer code for solving the bounce-averaged Fokker-Planck equation appropriate to stellarator transport has been developed, and its first applications made.
Mynick, H.E., W.N.G. Hitchon, H.E. Mynick, Hitchon, W.N.G.   +3 more
core   +1 more source

Recent advances in stellarator optimization

Nuclear Fusion, 2017
Computational optimization has revolutionized the field of stellarator design. To date, optimizations have focused primarily on optimization of neoclassical confinement and ideal MHD stability, although limited optimization of other parameters has also been performed.
D.A. Gates, A.H. Boozer, T. Brown, J. Breslau, D. Curreli, M. Landreman, S.A. Lazerson, J. Lore, H. Mynick, G.H. Neilson, N. Pomphrey, P. Xanthopoulos, A. Zolfaghari   +12 more
openaire   +3 more sources

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

Suppression of tearing modes by External Rotational Transform in a Tokamak-Stellarator hybrid configuration on J-TEXT

Nuclear Fusion
A Tokamak-Stellarator hybrid configuration has been established on the J-TEXT tokamak by the application of stellarator-like External Rotational Transform (ERT) coils.
Yangbo Li, Nengchao Wang, Bo Rao, Feiyue Mao, Chuanxu Zhao, Zhengkang Ren, Zhiyu Meng, Zijian Xuan, Song Zhou, Ruomu Wang, Xixuan Chen, Wei Zheng, Yasuhiro Suzuki, Zhonghe Jiang, the J-TEXT Team   +14 more
doaj   +1 more source