Matches in SemOpenAlex for { <https://semopenalex.org/work/W4387294263> ?p ?o ?g. }
Showing items 1 to 67 of
67
with 100 items per page.
- W4387294263 abstract "A common optimization problem in the areas of magnetized plasmas and fusion energy is the design of magnets to produce a given three-dimensional magnetic field distribution to high precision. When designing arrays of permanent magnets for stellarator plasma confinement, such problems have tens of thousands of degrees of freedom whose solutions, for practical reasons, should be constrained to discrete spaces. We perform a direct comparison between two algorithms that have been developed previously for this purpose, and demonstrate that composite procedures that apply both algorithms in sequence can produce substantially improved results. One approach uses a continuous, quasi-Newton procedure to optimize the dipole moments of a set of magnets and then projects the solution onto a discrete space. The second uses an inherently discrete greedy optimization procedure that has been enhanced and generalized for this work. The approaches are both applied to design arrays cubic rare-Earth permanent magnets to confine a quasi-axisymmetric plasma with a magnetic field on axis of 0.5 T. The first approach tends to find solutions with higher field accuracy, whereas the second can find solutions with substantially (up to 30%) fewer magnets. When the approaches are combined, they can obtain solutions with magnet quantities comparable to the second approach while exceeding the field accuracy of what either approach can achieve on its own." @default.
- W4387294263 created "2023-10-03" @default.
- W4387294263 creator A5036444834 @default.
- W4387294263 creator A5057282926 @default.
- W4387294263 date "2023-09-29" @default.
- W4387294263 modified "2023-10-04" @default.
- W4387294263 title "Improved stellarator permanent magnet designs through combined discrete and continuous optimizations" @default.
- W4387294263 doi "https://doi.org/10.48550/arxiv.2309.17244" @default.
- W4387294263 hasPublicationYear "2023" @default.
- W4387294263 type Work @default.
- W4387294263 citedByCount "0" @default.
- W4387294263 crossrefType "posted-content" @default.
- W4387294263 hasAuthorship W4387294263A5036444834 @default.
- W4387294263 hasAuthorship W4387294263A5057282926 @default.
- W4387294263 hasBestOaLocation W43872942631 @default.
- W4387294263 hasConcept C11413529 @default.
- W4387294263 hasConcept C115260700 @default.
- W4387294263 hasConcept C116515362 @default.
- W4387294263 hasConcept C119599485 @default.
- W4387294263 hasConcept C121332964 @default.
- W4387294263 hasConcept C126255220 @default.
- W4387294263 hasConcept C127413603 @default.
- W4387294263 hasConcept C160988588 @default.
- W4387294263 hasConcept C16389437 @default.
- W4387294263 hasConcept C173523689 @default.
- W4387294263 hasConcept C184720557 @default.
- W4387294263 hasConcept C202444582 @default.
- W4387294263 hasConcept C2781249502 @default.
- W4387294263 hasConcept C33923547 @default.
- W4387294263 hasConcept C41008148 @default.
- W4387294263 hasConcept C62520636 @default.
- W4387294263 hasConcept C82706917 @default.
- W4387294263 hasConcept C9652623 @default.
- W4387294263 hasConceptScore W4387294263C11413529 @default.
- W4387294263 hasConceptScore W4387294263C115260700 @default.
- W4387294263 hasConceptScore W4387294263C116515362 @default.
- W4387294263 hasConceptScore W4387294263C119599485 @default.
- W4387294263 hasConceptScore W4387294263C121332964 @default.
- W4387294263 hasConceptScore W4387294263C126255220 @default.
- W4387294263 hasConceptScore W4387294263C127413603 @default.
- W4387294263 hasConceptScore W4387294263C160988588 @default.
- W4387294263 hasConceptScore W4387294263C16389437 @default.
- W4387294263 hasConceptScore W4387294263C173523689 @default.
- W4387294263 hasConceptScore W4387294263C184720557 @default.
- W4387294263 hasConceptScore W4387294263C202444582 @default.
- W4387294263 hasConceptScore W4387294263C2781249502 @default.
- W4387294263 hasConceptScore W4387294263C33923547 @default.
- W4387294263 hasConceptScore W4387294263C41008148 @default.
- W4387294263 hasConceptScore W4387294263C62520636 @default.
- W4387294263 hasConceptScore W4387294263C82706917 @default.
- W4387294263 hasConceptScore W4387294263C9652623 @default.
- W4387294263 hasLocation W43872942631 @default.
- W4387294263 hasOpenAccess W4387294263 @default.
- W4387294263 hasPrimaryLocation W43872942631 @default.
- W4387294263 hasRelatedWork W2018246629 @default.
- W4387294263 hasRelatedWork W2022647680 @default.
- W4387294263 hasRelatedWork W2025488307 @default.
- W4387294263 hasRelatedWork W2039918985 @default.
- W4387294263 hasRelatedWork W2058920722 @default.
- W4387294263 hasRelatedWork W2073509966 @default.
- W4387294263 hasRelatedWork W2077655614 @default.
- W4387294263 hasRelatedWork W2151977604 @default.
- W4387294263 hasRelatedWork W4366198768 @default.
- W4387294263 hasRelatedWork W4380319993 @default.
- W4387294263 isParatext "false" @default.
- W4387294263 isRetracted "false" @default.
- W4387294263 workType "article" @default.