Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Mandell, N. R."'
Autor:
MANTA Collaboration, Rutherford, G., Wilson, H. S., Saltzman, A., Arnold, D., Ball, J. L., Benjamin, S., Bielajew, R., de Boucaud, N., Calvo-Carrera, M., Chandra, R., Choudhury, H., Cummings, C., Corsaro, L., DaSilva, N., Diab, R., Devitre, A. R., Ferry, S., Frank, S. J., Hansen, C. J., Jerkins, J., Johnson, J. D., Lunia, P., van de Lindt, J., Mackie, S., Maris, A. D., Mandell, N. R., Miller, M. A., Mouratidis, T., Nelson, A. O., Pharr, M., Peterson, E. E., Rodriguez-Fernandez, P., Segantin, S., Tobin, M., Velberg, A., Wang, A. M., Wigram, M., Witham, J., Paz-Soldan, C., Whyte, D. G.
The MANTA (Modular Adjustable Negative Triangularity ARC-class) design study investigated how negative-triangularity (NT) may be leveraged in a compact, fusion pilot plant (FPP) to take a ``power-handling first" approach. The result is a pulsed, radi
Externí odkaz:
http://arxiv.org/abs/2405.20243
Autor:
Giacomin, M., Dickinson, D., Dorland, W., Mandell, N. R., Bokshi, A., Casson, F. J., Dudding, H. G., Kennedy, D., Patel, B. S., Roach, C. M.
A quasi-linear reduced transport model is developed from a database of high-$\beta$ electromagnetic nonlinear gyrokinetic simulations performed with Spherical Tokamak for Energy Production (STEP) relevant parameters. The quasi-linear model is fully e
Externí odkaz:
http://arxiv.org/abs/2404.17453
Turbulent transport is regarded as one of the key issues in magnetic confinement nuclear fusion, both for tokamaks in stellarators. In this letter, we show that a significant decrease in the turbulent heat flux can be obtained in an efficient manner
Externí odkaz:
http://arxiv.org/abs/2301.09356
GX is a code for solving the nonlinear gyrokinetic system for low-frequency turbulence in magnetized plasmas, particularly tokamaks and stellarators. In GX, our primary motivation and target is a fast gyrokinetic solver that can be used for fusion re
Externí odkaz:
http://arxiv.org/abs/2209.06731
Autor:
Bernard, T. N., Halpern, F. D., Francisquez, M., Mandell, N. R., Juno, J., Hammett, G. W., Hakim, A., Wilkie, G., Guterl, J.
We present the first-of-its-kind coupling of a continuum full-f gyrokinetic turbulence model with a 6D continuum model for kinetic neutrals, carried out using the Gkeyll code. Our objective is to improve the first-principles understanding of the role
Externí odkaz:
http://arxiv.org/abs/2202.00811
The effect of varying magnetic shear on scrape-off layer turbulence and profiles is studied via electromagnetic gyrokinetic simulations of a helical scrape-off layer model. We develop a model helical geometry with magnetic shear and a corresponding f
Externí odkaz:
http://arxiv.org/abs/2112.14220
We demonstrate that cross-field transport in the scrape-off layer (SOL) can be moderately increased by electromagnetic effects in high-beta regimes, resulting in a broader electron heat-flux width on the endplates. This conclusion is taken from full-
Externí odkaz:
http://arxiv.org/abs/2112.06880
We present an energy-conserving discontinuous Galerkin scheme for the full-$f$ electromagnetic gyrokinetic system in the long-wavelength limit. We use the symplectic formulation and solve directly for $\partial A_\parallel/\partial t$, the inductive
Externí odkaz:
http://arxiv.org/abs/1908.05653
First-principles simulations of tokamak turbulence have proven to be of great value in recent decades. We develop a pseudo-spectral velocity formulation of the turbulence equations that smoothly interpolates between the highly efficient but lower res
Externí odkaz:
http://arxiv.org/abs/1708.04029
The confinement of heat in the core of a magnetic fusion reactor is optimised using a multidimensional optimisation algorithm. For the first time in such a study, the loss of heat due to turbulence is modelled at every stage using first-principles no
Externí odkaz:
http://arxiv.org/abs/1608.08812