Zobrazeno 1 - 10
of 14
pro vyhledávání: '"B. J. Faber"'
Publikováno v:
Physics of Plasmas, 29, 012303
Physics of Plasmas, 29(1):012303. American Institute of Physics
Physics of Plasmas, 29(1):012303. American Institute of Physics
The linear and nonlinear properties of ion-temperature-gradient-driven turbulence with adiabatic electrons are modeled for axisymmetric configurations for a broad range of triangularities δ, both negative and positive. Peak linear growth rates decre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5643bfa864ad043d3bb20fee6a38f46d
https://www.differ.nl/bibcite/reference/8866
https://www.differ.nl/bibcite/reference/8866
Publikováno v:
Journal of Plasma Physics, 87, 905870311
Kinetic-ballooning-mode (KBM) turbulence is studied via gyrokinetic flux-tube simulations in three magnetic equilibria that exhibit small average magnetic shear: the Helically Symmetric eXperiment (HSX), the helical-axis Heliotron-J and a circular to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e6ffd0cf03ffc9085f5ed3d7d357108
https://doi.org/10.1017/s0022377821000581
https://doi.org/10.1017/s0022377821000581
Autor:
Andrew Ware, Chris Hegna, Michael Drevlak, B. J. Faber, Matt Landreman, I. J. McKinney, Paul Terry, J.C. Schmitt, J. M. Schroeder, Thomas Kruger, Heinke Frerichs, Aaron Bader, J. M. Duff, David G. Anderson, Luquant Singh
Publikováno v:
Journal of Plasma Physics
A new optimized quasi-helically symmetric configuration is described that has the desirable properties of improved energetic particle confinement, reduced turbulent transport by three-dimensional shaping and non-resonant divertor capabilities. The co
Autor:
B. J. Faber, Michael Drevlak, Aaron Bader, Konstantin Likin, J.C. Schmitt, David G. Anderson, Joseph Talmadge, Chris Hegna
Publikováno v:
Journal of Plasma Physics. 85
Stellarator configurations with reactor relevant energetic particle losses are constructed by simultaneously optimizing for quasisymmetry and an analytically derived metric ( $\unicode[STIX]{x1D6E4}_{c}$ ), which attempts to align contours of the sec
Autor:
B. J. Faber, Chris Hegna, H. Mynick, I. J. McKinney, Pavlos Xanthopoulos, M. J. Pueschel, Joseph Talmadge, David G. Anderson
Publikováno v:
Journal of Plasma Physics
Ion-temperature-gradient-driven (ITG) turbulence is compared for two quasi-symmetric (QS) stellarator configurations to determine the relationship between linear growth rates and nonlinear heat fluxes. We focus on the quasi-helically symmetric (QHS)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69a34634a94de161525188491f0d1bf2
https://hdl.handle.net/21.11116/0000-0005-44C3-221.11116/0000-0005-C54B-921.11116/0000-0005-4E44-8
https://hdl.handle.net/21.11116/0000-0005-44C3-221.11116/0000-0005-C54B-921.11116/0000-0005-4E44-8
Publikováno v:
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
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[EN] Gyrokinetic simulations of drift waves in low-magnetic-shear stellarators reveal that simulation domains comprised of multiple turns can be required to properly resolve critical mode structures important in saturation dynamics. Marginally stable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b4e1d8a1a71bd1617f416936185e8dc
https://doi.org/10.1017/s0022377818001022
https://doi.org/10.1017/s0022377818001022
Publikováno v:
Physical Review Letters, 116, 085001
Owing to complex geometry, gyrokinetic simulations in stellarator geometry produce large numbers of subdominant unstable and stable, near-orthogonal eigenmodes. Here, results based on the full eigenmode spectrum in stellarator geometry are presented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::658310ed2220cab9d67ea9b5e885ace3
https://www.differ.nl/bibcite/reference/8145
https://www.differ.nl/bibcite/reference/8145
Publikováno v:
Plasma Physics and Controlled Fusion
With the advent of neoclassically optimised stellarators, optimising stellarators for turbulent transport is an important next step. The reduction of ion-temperature-gradient-driven turbulence has been achieved via shaping of the magnetic field, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9b6e13192ee872229d3a853fe67cbb8
https://hdl.handle.net/11858/00-001M-0000-0029-39DE-211858/00-001M-0000-0029-39E0-9
https://hdl.handle.net/11858/00-001M-0000-0029-39DE-211858/00-001M-0000-0029-39E0-9
Publikováno v:
Physics of Plasmas. 25:022511
A three-field fluid model that allows for general three-dimensional equilibrium geometry is developed to describe ion temperature gradient turbulent saturation processes in stellarators. The theory relies on the paradigm of nonlinear transfer of ener
Publikováno v:
Physics of Plasmas. 25:012308
The emerging understanding of instability-driven plasma-turbulence saturation in terms of energy transfer to stable modes in the same scale range as the instability is employed to derive a saturation theory for the toroidal branch of ion temperature