Optimizing Stellarators for Turbulent Transport

Autor:	N. Pomphrey, P. Xanthopoulos, H. E. Mynick
Jazyk:	angličtina
Rok vydání:	2010
Předmět:	Physics Turbulence Plasma turbulence National Compact Stellarator Experiment General Physics and Astronomy Ion temperature Plasma Mechanics law.invention Nonlinear system law Statistical physics Stellarator Communication channel
Zdroj:	Physical Review Letters Physical Review Letters, v.105 (2010)
Popis:	Up to now, the term "transport-optimized" stellarators has meant optimized to minimize neoclassical transport, while the task of also mitigating turbulent transport, usually the dominant transport channel in such designs, has not been addressed, due to the complexity of plasma turbulence in stellarators. Here, we demonstrate that stellarators can also be designed to mitigate their turbulent transport, by making use of two powerful numerical tools not available until recently, namely, gyrokinetic codes valid for 3D nonlinear simulations and stellarator optimization codes. Two initial proof-of-principle configurations are obtained, reducing the level of ion temperature gradient turbulent transport from the National Compact Stellarator Experiment baseline design by a factor of 2-2.5.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9e9d7ec1c896060bb82041eccca2f0b http://link.aps.org/doi/10.1103/PhysRevLett.105.095004 Zobrazit plný text záznamu