Results 161 to 170 of about 4,889,124 (198)

Configuration Optimization of a Planar-Axis Stellarator with a Reduced Shafranov Shift

Plasma and Fusion Research, 2013
Magnetic configurations of LHD experiment are analyzed based on the Fourier modes of the plasma boundary shapes. It was found that a small number of Fourier modes is sufficient to determine the confinement characteristics of different configurations with
OKAMURA, Shoichi
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Optimizing the Support of a Stellar Sensor

Russian Engineering Research, 2018
The mass of a support for a stellar sensor in a spacecraft is minimized in the light of requirements on the first eigenfrequency and the reactive force in the connectors. Topological and parametric optimization is employed.
A. D. Novokshenov, P. A. Marchenko, A. S. Nemov, A. I. Borovkov   +3 more
openaire   +1 more source

ConStellaration: A dataset of QI-like stellarator plasma boundaries and optimization benchmarks

arXiv.org
Stellarators are magnetic confinement devices under active development to deliver steady-state carbon-free fusion energy. Their design involves a high-dimensional, constrained optimization problem that requires expensive physics simulations and ...
Santiago A. Cadena, Andrea Merlo, E. Laude, Alexander Bauer, Atul Agrawal, M. Pascu, Marija Savtchouk, E. Guiraud, Lukas Bonauer, Stuart Hudson, Markus Kaiser   +10 more
semanticscholar   +1 more source

Automated Optimization of Stellarator Coils

Fusion Technology, 1998
AbstractA method for finding a set of modular, poloidally closed stellarator coils confining a plasma in a given equilibrium configuration is described. The proposed technique performs a direct nonlinear optimization of the coil shapes with respect both to the desired structure of the magnetic field and to geometric constraints required by the ...
openaire   +2 more sources

Optimization of Stellarator Reactor Parameters

Fusion Science and Technology, 2005
Four quasi-axisymmetric compact stellarator plasma and coil configurations are analyzed for their potential as reactors. A 0-D (volume-average) approach for optimizing the main reactor parameters allows study of the relationship between global parameters and the compatibility of different constraints for a given power output including plasma-coil ...
J. F. Lyon, L. P. Ku, P. Garabedian, L. El-Guebaly, L. Bromberg   +4 more
openaire   +1 more source

Optimization of the MHH stellarator

Communications on Pure and Applied Mathematics, 1997
Summary: The modular Helias-like Heliac (MHH) is a coil configuration selected two years ago for the U.S. stellarator power plant study. Since that time the design has been significantly improved by running a collection of three-dimensional plasma physics codes.
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Transport optimization in stellarators

Physics of Plasmas, 2006
A survey of the approaches which have been developed for mitigating transport in stellarators is presented. A primary deficiency of stellarators has been elevated transport levels due to their nonaxisymmetry. Since the early 1980s, stellarator research has addressed this difficulty, developing a range of techniques for reducing transport, both ...
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A Novel Investigation of Fourier Series Order Effects on Stellarator Coil Optimization Using Augmented Lagrangian Methods

2025 IEEE MIT Undergraduate Research Technology Conference (URTC)
The design of stellarator coils plays a critical role in achieving the magnetic field configurations required for effective plasma confinement in fusion devices.
Weiping Li, A. Kaptanoglu, Julianne Stratton, Pedro F. Gil   +3 more
semanticscholar   +1 more source

Optimization of passive superconductors for shaping stellarator magnetic fields.

Physical Review E
We consider the problem of optimizing a set of passive superconducting coils (PSCs) with currents induced by a background magnetic field rather than power supplies.
A. Kaptanoglu, Matt Landreman, M. Zarnstorff   +2 more
semanticscholar   +1 more source

Stellar Mesh Simplification Using Probabilistic Optimization

Computer Graphics Forum, 2004
AbstractThis paper proposes the stellar mesh simplification method, a fast implementation of the Four‐Face Cluster (FFC) algorithm. In this method, a probabilistic optimization heuristic substitutes the priority queue of the original method, which results in a 40% faster algorithm with the same order of distortion. It extends naturally to a progressive
Antônio Wilson Vieira, Thomas Lewiner, Luiz Velho 0001, Hélio Lopes 0001, Geovan Tavares   +4 more
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