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Autor:
TenBarge, J. M., Alexandrova, O., Boldyrev, S., Califano, F., Cerri, S. S., Chen, C. H. K., Howes, G. G., Horbury, T., Isenberg, P. A., Ji, H., Klein, K. G., Krafft, C., Kunz, M., Loureiro, N. F., Mallet, A., Maruca, B. A., Matthaeus, W. H., Meyrand, R., Quataert, E., Perez, J. C., Roberts, O. W., Sahraoui, F., Salem, C. S., Schekochihin, A. A., Spence, H., Squire, J., Told, D., Verscharen, D., Wicks, R. T.
This white paper submitted for 2020 Decadal Assessment of Plasma Science concerns the importance of multi-spacecraft missions to address fundamental questions concerning plasma turbulence. Plasma turbulence is ubiquitous in the universe, and it is re
Externí odkaz:
http://arxiv.org/abs/1903.05710
Autor:
Neiser, T. F., Jenko, F., Carter, T. A., Schmitz, L., Told, D., Merlo, G., Navarro, A. Bañón, Crandall, P. C., McKee, G. R., Yan, Z.
Publikováno v:
Physics of Plasmas 26, 092510 (2019)
We present gyrokinetic simulations with the GENE code addressing the near-edge region of an L-mode plasma in the DIII-D tokamak. At radial position $\rho=0.80$, simulations with the ion temperature gradient increased by $40\%$ above the nominal value
Externí odkaz:
http://arxiv.org/abs/1808.06607
Autor:
Groselj, D., Cerri, S. S., Navarro, A. Banon, Willmott, C., Told, D., Loureiro, N. F., Califano, F., Jenko, F.
Publikováno v:
Astrophys. J. 847, 28 (2017)
We report the results of a direct comparison between different kinetic models of collisionless plasma turbulence in two spatial dimensions. The models considered include a first principles fully-kinetic (FK) description, two widely used reduced model
Externí odkaz:
http://arxiv.org/abs/1706.02652
Publikováno v:
Phys. Rev. Lett. 117, 245101 (2016)
We analyze plasma heating in weakly collisional kinetic Alfv\'en wave (KAW) turbulence using high resolution gyrokinetic simulations spanning the range of scales between the ion and the electron gyroradii. Real space structures that have a higher tha
Externí odkaz:
http://arxiv.org/abs/1607.07480
A long-lasting debate in space plasma physics concerns the nature of subproton-scale fluctuations in solar wind (SW) turbulence. Over the past decade, a series of theoretical and observational studies were presented in favor of either kinetic Alfv\'e
Externí odkaz:
http://arxiv.org/abs/1604.07674
Publikováno v:
Phys. Rev. Lett. 115, 025003, 2015
Nonlinear energy transfer and dissipation in Alfv\'en wave turbulence are analyzed in the first gyrokinetic simulation spanning all scales from the tail of the MHD range to the electron gyroradius scale. For typical solar wind parameters at 1 AU, abo
Externí odkaz:
http://arxiv.org/abs/1505.02204
Publikováno v:
Physics of Plasmas 22, 082110 (2015)
In this work, we compare gyrokinetic (GK) and fully kinetic Particle-in-Cell (PIC) simulations of magnetic reconnection in the limit of strong guide field. In particular, we analyze the limits of applicability of the GK plasma model compared to a ful
Externí odkaz:
http://arxiv.org/abs/1504.01351
Autor:
Navarro, A. Banon, Happel, T., Goerler, T., Jenko, F., Abiteboul, J., Bustos, A., Doerk, H., Told, D., Team, The ASDEX Upgrade
Gyrokinetic validation studies are crucial in developing confidence in the model incorporated in numerical simulations and thus improving their predictive capabilities. As one step in this direction, we simulate an ASDEX Upgrade discharge with the GE
Externí odkaz:
http://arxiv.org/abs/1501.05163
Autor:
Maurer, M., Bañón Navarro, A., Dannert, T., Restelli, M., Hindenlang, F., Görler, T., Told, D., Jarema, D., Merlo, G., Jenko, F.
Publikováno v:
In Journal of Computational Physics 1 November 2020 420
