Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Roach, Colin"'
Autor:
Sun, Haomin, Ball, Justin, Brunner, Stephan, Field, Anthony, Patel, Bhavin, Kennedy, Daniel, Roach, Colin, Cruz-Zabala, Diego Jose, Del Pozo, Fernando Puentes, Viezzer, Eleonora, Munoz, Manuel Garcia
Based on the analysis of a large number of high-fidelity nonlinear gyrokinetic simulations, we propose a novel strategy to improve confinement in tokamak plasmas by combining up-down asymmetric flux surface shaping with the Low Momentum Diffusivity (
Externí odkaz:
http://arxiv.org/abs/2410.10555
Autor:
Sun, Haomin, Ball, Justin, Brunner, Stephan, Field, Anthony, Patel, Bhavin, Balestri, Alessandro, Kennedy, Daniel, Roach, Colin, Cruz-Zabala, Diego Jose, Del Pozo, Fernando Puentes, Viezzer, Eleonora, Munoz, Manuel Garcia
Strong $E\times B$ plasma flow shear is beneficial for reducing turbulent transport. However, traditional methods of driving flow shear do not scale well to large devices such as future fusion power plants. In this paper, we use a large number of non
Externí odkaz:
http://arxiv.org/abs/2408.12331
Autor:
Hornsby, William, Gray, Ander, Buchanan, James, Kenndy, Daniel, Patel, Bhavin, Casson, Francis, Roach, Colin, Lykkegaard, Mikkel, Nguyen, Huy, Papadimas, Nikolaos, Fourcin, Ben, Hart, Jordan
Spherical tokamaks (STs) have many desirable features that make them a suitable choice for fusion power plants. To understand their confinement properties, accurate calculation of turbulent micro-instabilities is necessary for tokamak design. Present
Externí odkaz:
http://arxiv.org/abs/2403.13006
Autor:
Hornsby, William, Gray, Ander, Buchanan, James, Patel, Bhavin, Kennedy, Daniel, Casson, Francis, Roach, Colin, Lykkegaard, Mikkel, Nguyen, Huy, Papadimas, Nikolaos, Fourcin, Ben, Hart, Jordan
Spherical tokamaks (STs) have many desirable features that make them an attractive choice for a future fusion power plant. Power plant viability is intrinsically related to plasma heat and particle confinement and this is often determined by the leve
Externí odkaz:
http://arxiv.org/abs/2309.09785
Autor:
Kennedy, Daniel, Giacomin, Maurizio, Casson, Francis J, Dickinson, David, Hornsby, William A, Patel, Bhavin S, Roach, Colin M
Publikováno v:
Nucl. Fusion 63 126061 (2023)
We present herein the results of a linear gyrokinetic analysis of electromagnetic microinstabilites in the conceptual high-$\beta$, reactor-scale, tight-aspect-ratio tokamak STEP (Spherical Tokamak for Energy Production, https://step.ukaea.uk). We ex
Externí odkaz:
http://arxiv.org/abs/2307.01670
Autor:
Giacomin, Maurizio, Kennedy, Daniel, Casson, Francis J, J., Ajay C., Dickinson, David, Patel, Bhavin S., Roach, Colin M.
Publikováno v:
Plasma Phys. Control. Fusion 2024
In this work, we present first-of-their-kind nonlinear local gyrokinetic simulations of electromagnetic turbulence at mid-radius in the burning plasma phase of the conceptual high-$\beta$, reactor-scale, tight-aspect-ratio tokamak STEP (Spherical Tok
Externí odkaz:
http://arxiv.org/abs/2307.01669
Autor:
Parisi, Jason F., Parra, Felix I., Roach, Colin M., Giroud, Carine, Dorland, William, Hatch, David R., Barnes, Michael, Hillesheim, Jon C., Aiba, Nobuyuki, Ball, Justin, Ivanov, Plamen G., Contributors, JET
Local linear gyrokinetic simulations show that electron temperature gradient (ETG) instabilities are the fastest growing modes for $k_y \rho_i \gtrsim 0.1$ in the steep gradient region for a JET pedestal discharge (92174) where the electron temperatu
Externí odkaz:
http://arxiv.org/abs/2004.13634
Akademický článek
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Akademický článek
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Autor:
Giacomin, Maurizio, Kennedy, Daniel, Casson, Francis J, J., Ajay C., Dickinson, David, Patel, Bhavin S., Roach, Colin M.
In this work, we present the results of first-of-their-kind nonlinear local gyrokinetic simulations of electromagnetic turbulence at mid-radius in the burning plasma phase of the conceptual high-$\beta$, reactor-scale, tight-aspect-ratio tokamak STEP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c555c1f8020bf4ccbea52569ac1cbfb
http://arxiv.org/abs/2307.01669
http://arxiv.org/abs/2307.01669