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of 59 414
pro vyhledávání: '"BARNES, M"'
Starting from the assumption that saturation of plasma turbulence driven by temperature-gradient instabilities in fusion plasmas is achieved by a local energy cascade between a long-wavelength outer scale, where energy is injected into the fluctuatio
Externí odkaz:
http://arxiv.org/abs/2405.00854
Efficient control of turbulent heat transport is crucial for magnetic confinement fusion reactors. This work discusses the complex interplay between density gradients and micro-instabilities, shedding light on their impact on turbulent heat transport
Externí odkaz:
http://arxiv.org/abs/2404.09929
Akademický článek
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Akademický článek
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Autor:
González-Jerez, A., García-Regaña, J. M., Calvo, I., Carralero, D., Estrada, T., Sánchez, E., Barnes, M., Team, the W7-X
The first experimental campaigns of Wendelstein 7-X (W7-X) have shown that turbulence plays a decisive role in the performance of neoclassically optimized stellarators. This stresses the importance of understanding microturbulence from the theoretica
Externí odkaz:
http://arxiv.org/abs/2312.10221
Autor:
Podavini, L., Zocco, A., García-Regaña, J. M., Barnes, M., Parra, F. I., Mishchenko, A., Helander, P.
Electrostatic gyrokinetic instabilities and turbulence in the Wendelstein 7-X stellarator are studied. Particular attention is paid to the ion-temperature-gradient (ITG) instability and its character close to marginal stability [Floquet-type turbulen
Externí odkaz:
http://arxiv.org/abs/2311.04342
Publikováno v:
International Journal of Social Pedagogy, Vol 5, Iss 1 (2016)
Externí odkaz:
https://doaj.org/article/b9512029d1a64cf7b92f752957236352
Autor:
Thienpondt, H., García-Regaña, J. M., Calvo, I., Alonso, J. A., Velasco, J. L., González-Jerez, A., Barnes, M., Brunner, K., Ford, O., Fuchert, G., Knauer, J., Pasch, E., Vanó, L., team, the Wendelstein 7-X
Publikováno v:
Physical Review Research 5 (2023) L022053
In reactor-relevant plasmas, neoclassical transport drives an outward particle flux in the core of large stellarators and predicts strongly hollow density profiles. However, this theoretical prediction is contradicted by experiments. In particular, i
Externí odkaz:
http://arxiv.org/abs/2209.04194
Autor:
Hardman, M. R., Parra, F. I., Patel, B. S., Roach, C. M., Ruiz, J. Ruiz, Barnes, M., Dickinson, D., Dorland, W., Parisi, J. F., St-Onge, D., Wilson, H.
In magnetic confinement fusion devices, the ratio of the plasma pressure to the magnetic field energy, $\beta$, can become sufficiently large that electromagnetic microinstabilities become unstable, driving turbulence that distorts or reconnects the
Externí odkaz:
http://arxiv.org/abs/2208.10615